Think & Study Green - The effects of acid rain on plants
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This document summarizes a student project that simulated the effects of acid rain on plants. Students tested the impact of acid rain at different levels of acidity on bean seeds, geranium plants, and geranium petals. They found that acid rain negatively affected seed germination rates and the growth, color, and health of the plants. The students concluded that acid rain poses dangers to plants and called for efforts to reduce pollution and environmental damage.
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Sierra conducted an experiment to see how different liquids affected viola plants when used for watering. Plant A was watered with regular water, Plant B with sugar water, Plant C with apple juice, and Plant D with orange juice. Over 10 days, Plant A grown normally while Plants B, C, and D declined, with Plant C becoming totally dead. Sierra's hypothesis that Plant B would grow best was incorrect, but the experiment showed plants do not survive well when watered with liquids containing glucose.
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Sierra conducted an experiment to test how different liquids affect plant growth when used for watering. She had four viola plants and watered one with regular water (Plant A), one with sugar water (Plant B), one with apple juice (Plant C), and one with orange juice (Plant D). Over 10 days, she observed the plants and measured their heights. Plant A watered with regular water grew normally, while the other plants showed signs of stress - Plant B became droopy, Plant C died halfway through, and Plant D developed fungus and died by the end. Sierra's hypothesis that the sugar water plant would do best was incorrect, but she concluded that plants do not survive well when watered with liquids containing glucose
Acid rain
The document describes an experiment that investigated how different pH levels of acid rain affect seed germination. Seeds were planted in soil with pH levels of 2, 5, and 7 to represent acid rain. The seeds were observed over 4 days, with the pH7 seeds growing the most to 1.5 cm while the pH2 seeds all died. Therefore, the conclusion is that seeds germinate more in higher pH levels closer to distilled water. Potential weaknesses are identified around moisture control and ensuring consistent watering and sunlight exposure.
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Herbs
Here are the key points about growing some common herbs:
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Running head BIOLOGY LAB REPORT1Last name 7Biology Lab R.docx
Running head: BIOLOGY LAB REPORT 1
Last name 7
Biology Lab Report
Name of Instructor
Name of Student
Course Code
DateIntroduction
The abiotic features of an ecosystem are significant to understand the biological community that comprises the biotic component of the ecosystem. The availability of water is particularly significant in everyone’s life. Freshwater helps the world’s water to make it up to about one percent. Scarcity of freshwater limits the range of many terrestrial species of plants and animals (Rhines et al. 7). Plants like animals have different tolerances to salt their environment. As it is known, that all soils have some salts for water-soluble, and in this form of soil, essential nutrients of plants are absorbed. High salinity in the soil makes it more difficult for plants to extract water from the soil.
Freshwater enters an ecosystem in the form of precipitation, a river or lake, or an underground aquifer. With the growth of the human population, intensive practices of agriculture and water demand for urban, water levels in many of the world’s aquifer are dropping. If freshwater is pumped out of an aquifer at a rate exceeding its natural recharge rate saltwater and other pollutants may intrude into the traditional aquifer basin (Martínez-Ballesta, et al. 42). Saltwater encroachment is a growing problem in the aquifers of coastal communities.
Salty soil is also an obstacle that can arise in agriculture. As irrigation water is consumed by plants and evaporated by the sun, salts are left behind. Over time, salt may collect such that the soil becomes too salty for many plants to grow. It is believed that the ancient population of Sumeria first flourished with its practice of irrigation, but over many generations began to undergo reduced crop yields due to the expanding salinity of the soil.
Extreme soil and water salinity are environmental stress constituents that restrain the growth and yield of glycophytic crop plants in various regions of the world. Plant growth may describe as an irreversible increment in size emerging from cell division and expansion and, in principle, established by rates of water uptake and metabolically interfered cell wall loosening and the uptake of nutrients into the cells (Chhabra 252).Methods
In experiment 1, which is named water transport and salinity, several methods or steps are used to obtain the result of the experiment. In this experiment, four cups taken filled with 400 ml of water. Then use the red dye to satin the two cups darkly, and for another two cup strain, blue dye is used. Measure each cup with the same amount of dye and record it. Label the red and blue dye cup with an S. Then add four spoons full of salt in each cup and stir the solutions thoroughly. Obtain two similar stalks of celery, each with some leaves at the top. Cut the stalk in a 1-cm piece off bottom. Then carefully, split the stalks up the middle about half-way. After, performing all the functions of stalks, place both .
Running head BIOLOGY LAB REPORT1Last name 7Biology Lab R.docx
Running head: BIOLOGY LAB REPORT 1
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Name of Instructor
Name of Student
Course Code
DateIntroduction
The abiotic features of an ecosystem are significant to understand the biological community that comprises the biotic component of the ecosystem. The availability of water is particularly significant in everyone’s life. Freshwater helps the world’s water to make it up to about one percent. Scarcity of freshwater limits the range of many terrestrial species of plants and animals (Rhines et al. 7). Plants like animals have different tolerances to salt their environment. As it is known, that all soils have some salts for water-soluble, and in this form of soil, essential nutrients of plants are absorbed. High salinity in the soil makes it more difficult for plants to extract water from the soil.
Freshwater enters an ecosystem in the form of precipitation, a river or lake, or an underground aquifer. With the growth of the human population, intensive practices of agriculture and water demand for urban, water levels in many of the world’s aquifer are dropping. If freshwater is pumped out of an aquifer at a rate exceeding its natural recharge rate saltwater and other pollutants may intrude into the traditional aquifer basin (Martínez-Ballesta, et al. 42). Saltwater encroachment is a growing problem in the aquifers of coastal communities.
Salty soil is also an obstacle that can arise in agriculture. As irrigation water is consumed by plants and evaporated by the sun, salts are left behind. Over time, salt may collect such that the soil becomes too salty for many plants to grow. It is believed that the ancient population of Sumeria first flourished with its practice of irrigation, but over many generations began to undergo reduced crop yields due to the expanding salinity of the soil.
Extreme soil and water salinity are environmental stress constituents that restrain the growth and yield of glycophytic crop plants in various regions of the world. Plant growth may describe as an irreversible increment in size emerging from cell division and expansion and, in principle, established by rates of water uptake and metabolically interfered cell wall loosening and the uptake of nutrients into the cells (Chhabra 252).Methods
In experiment 1, which is named water transport and salinity, several methods or steps are used to obtain the result of the experiment. In this experiment, four cups taken filled with 400 ml of water. Then use the red dye to satin the two cups darkly, and for another two cup strain, blue dye is used. Measure each cup with the same amount of dye and record it. Label the red and blue dye cup with an S. Then add four spoons full of salt in each cup and stir the solutions thoroughly. Obtain two similar stalks of celery, each with some leaves at the top. Cut the stalk in a 1-cm piece off bottom. Then carefully, split the stalks up the middle about half-way. After, performing all the functions of stalks, place both ...
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The document summarizes a lab experiment that tested the effects of acid rain on radish plant growth. Three radish plants were used - two experimental plants that received water with vinegar to simulate acid rain, and one control plant that received regular tap water. After the experiment, the plants that received acidic water immediately showed symptoms of nutrient deficiencies, while the control plant grew normally. This supported the hypothesis that acid rain harms plants by removing nutrients from the soil. The results indicate acid rain could potentially destroy ecosystems by killing plants.
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Sierra conducted an experiment to see how different liquids affected viola plants when used for watering. Plant A was watered with regular water, Plant B with sugar water, Plant C with apple juice, and Plant D with orange juice. Over 10 days, Plant A grown normally while Plants B, C, and D declined, with Plant C becoming totally dead. Sierra's hypothesis that Plant B would grow best was incorrect, but the experiment showed plants do not survive well when watered with liquids containing glucose.
TechYES project 1 final copy
Sierra conducted an experiment to test how different liquids affect plant growth when used for watering. She had four viola plants and watered one with regular water (Plant A), one with sugar water (Plant B), one with apple juice (Plant C), and one with orange juice (Plant D). Over 10 days, she observed the plants and measured their heights. Plant A watered with regular water grew normally, while the other plants showed signs of stress - Plant B became droopy, Plant C died halfway through, and Plant D developed fungus and died by the end. Sierra's hypothesis that the sugar water plant would do best was incorrect, but she concluded that plants do not survive well when watered with liquids containing glucose
Acid rain
The document describes an experiment that investigated how different pH levels of acid rain affect seed germination. Seeds were planted in soil with pH levels of 2, 5, and 7 to represent acid rain. The seeds were observed over 4 days, with the pH7 seeds growing the most to 1.5 cm while the pH2 seeds all died. Therefore, the conclusion is that seeds germinate more in higher pH levels closer to distilled water. Potential weaknesses are identified around moisture control and ensuring consistent watering and sunlight exposure.
Brockley & Ladywell Cemeteries Plant List
The document appears to be a table listing plant species observed at various locations, including their family, scientific name, common name, category (flower), location coordinates, and date observed. It includes over 100 observed plant species spanning many families such as Asteraceae, Brassicaceae, Fabaceae, Geraniaceae and more. The plants were observed between February 2014 and August 2015 at locations in the British national grid reference system.
Herbs
Here are the key points about growing some common herbs:
- Basil, borage, chamomile, coriander, dill, mint, oregano, and parsley are described as easy to grow herbs. Most can be grown from seed or cuttings in containers or in the ground. They require sun, water, and prefer well-drained soil.
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Running head BIOLOGY LAB REPORT1Last name 7Biology Lab R.docx
Running head: BIOLOGY LAB REPORT 1
Last name 7
Biology Lab Report
Name of Instructor
Name of Student
Course Code
DateIntroduction
The abiotic features of an ecosystem are significant to understand the biological community that comprises the biotic component of the ecosystem. The availability of water is particularly significant in everyone’s life. Freshwater helps the world’s water to make it up to about one percent. Scarcity of freshwater limits the range of many terrestrial species of plants and animals (Rhines et al. 7). Plants like animals have different tolerances to salt their environment. As it is known, that all soils have some salts for water-soluble, and in this form of soil, essential nutrients of plants are absorbed. High salinity in the soil makes it more difficult for plants to extract water from the soil.
Freshwater enters an ecosystem in the form of precipitation, a river or lake, or an underground aquifer. With the growth of the human population, intensive practices of agriculture and water demand for urban, water levels in many of the world’s aquifer are dropping. If freshwater is pumped out of an aquifer at a rate exceeding its natural recharge rate saltwater and other pollutants may intrude into the traditional aquifer basin (Martínez-Ballesta, et al. 42). Saltwater encroachment is a growing problem in the aquifers of coastal communities.
Salty soil is also an obstacle that can arise in agriculture. As irrigation water is consumed by plants and evaporated by the sun, salts are left behind. Over time, salt may collect such that the soil becomes too salty for many plants to grow. It is believed that the ancient population of Sumeria first flourished with its practice of irrigation, but over many generations began to undergo reduced crop yields due to the expanding salinity of the soil.
Extreme soil and water salinity are environmental stress constituents that restrain the growth and yield of glycophytic crop plants in various regions of the world. Plant growth may describe as an irreversible increment in size emerging from cell division and expansion and, in principle, established by rates of water uptake and metabolically interfered cell wall loosening and the uptake of nutrients into the cells (Chhabra 252).Methods
In experiment 1, which is named water transport and salinity, several methods or steps are used to obtain the result of the experiment. In this experiment, four cups taken filled with 400 ml of water. Then use the red dye to satin the two cups darkly, and for another two cup strain, blue dye is used. Measure each cup with the same amount of dye and record it. Label the red and blue dye cup with an S. Then add four spoons full of salt in each cup and stir the solutions thoroughly. Obtain two similar stalks of celery, each with some leaves at the top. Cut the stalk in a 1-cm piece off bottom. Then carefully, split the stalks up the middle about half-way. After, performing all the functions of stalks, place both .
Running head BIOLOGY LAB REPORT1Last name 7Biology Lab R.docx
Running head: BIOLOGY LAB REPORT 1
Last name 7
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Name of Instructor
Name of Student
Course Code
DateIntroduction
The abiotic features of an ecosystem are significant to understand the biological community that comprises the biotic component of the ecosystem. The availability of water is particularly significant in everyone’s life. Freshwater helps the world’s water to make it up to about one percent. Scarcity of freshwater limits the range of many terrestrial species of plants and animals (Rhines et al. 7). Plants like animals have different tolerances to salt their environment. As it is known, that all soils have some salts for water-soluble, and in this form of soil, essential nutrients of plants are absorbed. High salinity in the soil makes it more difficult for plants to extract water from the soil.
Freshwater enters an ecosystem in the form of precipitation, a river or lake, or an underground aquifer. With the growth of the human population, intensive practices of agriculture and water demand for urban, water levels in many of the world’s aquifer are dropping. If freshwater is pumped out of an aquifer at a rate exceeding its natural recharge rate saltwater and other pollutants may intrude into the traditional aquifer basin (Martínez-Ballesta, et al. 42). Saltwater encroachment is a growing problem in the aquifers of coastal communities.
Salty soil is also an obstacle that can arise in agriculture. As irrigation water is consumed by plants and evaporated by the sun, salts are left behind. Over time, salt may collect such that the soil becomes too salty for many plants to grow. It is believed that the ancient population of Sumeria first flourished with its practice of irrigation, but over many generations began to undergo reduced crop yields due to the expanding salinity of the soil.
Extreme soil and water salinity are environmental stress constituents that restrain the growth and yield of glycophytic crop plants in various regions of the world. Plant growth may describe as an irreversible increment in size emerging from cell division and expansion and, in principle, established by rates of water uptake and metabolically interfered cell wall loosening and the uptake of nutrients into the cells (Chhabra 252).Methods
In experiment 1, which is named water transport and salinity, several methods or steps are used to obtain the result of the experiment. In this experiment, four cups taken filled with 400 ml of water. Then use the red dye to satin the two cups darkly, and for another two cup strain, blue dye is used. Measure each cup with the same amount of dye and record it. Label the red and blue dye cup with an S. Then add four spoons full of salt in each cup and stir the solutions thoroughly. Obtain two similar stalks of celery, each with some leaves at the top. Cut the stalk in a 1-cm piece off bottom. Then carefully, split the stalks up the middle about half-way. After, performing all the functions of stalks, place both ...
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The document summarizes a lab experiment that tested the effects of acid rain on radish plant growth. Three radish plants were used - two experimental plants that received water with vinegar to simulate acid rain, and one control plant that received regular tap water. After the experiment, the plants that received acidic water immediately showed symptoms of nutrient deficiencies, while the control plant grew normally. This supported the hypothesis that acid rain harms plants by removing nutrients from the soil. The results indicate acid rain could potentially destroy ecosystems by killing plants.
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Jeffery Fairley conducted an experiment over 12 days to examine how acidic beverages affect tooth decay. Eggs were submerged in grape soda, lemonade, or water, with the eggs representing teeth. Over time, the grape soda and lemonade caused the eggs to darken and erode more than the water. pH tests on the fourth day of each trial found grape soda had the lowest pH of 3, indicating the highest acidity, while lemonade and water had pH levels of 4 and 8, respectively. All three trials produced the same results, concluding that highly acidic drinks like grape soda cause the most tooth decay if consumed daily.
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Aarons sf powerpoitn 2012
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Lab 3 – BiodiversityExperiment 1 Effects of Water Pollution o.docx
Lab 3 – Biodiversity
Experiment 1: Effects of Water Pollution on Plant Diversity
Water pollution can have severely negative effects on biodiversity and ecosystems, particularly on plant populations. In many cases, these pollutants are introduced to the environment through everyday human activity. In this experiment, you will contaminate several water samples, as well as purify a water sample. You will then evaluate the effects of water pollution and purification on the biodiversity of wildflowers.
POST-LAB QUESTIONS
Table 1: Water Observations (smell, color, etc.)
Beaker
Observations
1
2
3
4
5
6
7
8
1.
What effects did each of the contaminants have on the water in the experiment? Use Table 1 for reference.
Answer =
2.
What kinds of human activities could cause oil, acids, and detergents to contaminate the water supply?
Answer =
3.
What are the differences in color, smell, visibility, etc. between the “contaminated” water and the “treated” water?
Answer =
4.
From the introduction to Lab 2, you know that there are typically five steps involved in the water treatment process. Identify the processes (e.g., coagulation) that were used in this lab and describe how they were performed.
Answer =
5. Develop a hypothesis regarding how using contaminated or purified water might affect plant biodiversity. Which pot do you believe will contain the greatest biodiversity (greatest number of species)? Why?
Hypothesis =
Table 2: Number of Plant Species Present in the Pots
Species Observed
Tap Water
Contaminated Water
Purified Water
Zinnia
Y
N
Y
N
Y
N
Marigold
Y
N
Y
N
Y
N
Morning Glory
Y
N
Y
N
Y
N
Cosmos
Y
N
Y
N
Y
N
Ryegrass
Y
N
Y
N
Y
N
Total Number of Species in Pot:
6.
Based on the results of your experiment, would you reject or accept the hypothesis that you produced in question 5?
Explain how you determined this.
Accept/Reject =
7.
Alum contains aluminum. Research the effects of aluminum on plants by finding a scholarly source online. Does your research provide any insight into your results? Discuss your findings as they relate to the results of your experiment.
Answer =
8.
Imagine that each pot was a sample you found in a group of wildflowers. Based on the diversity of flowers in each pot, would you consider the ecosystem to be healthy? Why or why not?
Answer =
9.
How does biodiversity contribute to the overall health of an ecosystem?
Provide specific examples and utilize at least one scholarly resource to back your answer.
Answer =
10.
Rank the following three scenarios in terms of having the most to least biodiversity and provide your rationale for these rankings.
·
A vacant lot behind a car repair facility.
·
A designated national wilderness area.
·
A grassy strip along the highway.
Answer =
References
Any sources utilized should be listed here.
...
Running Head WATER QUALITY AND CONTAMINATION1WATER QUALITY A.docx
Running Head: WATER QUALITY AND CONTAMINATION 1
WATER QUALITY AND CONTAMINATION 7
Water Quality and Contamination
Brenda Rouse
SCI 207: Our Dependence upon the Environment
Instructor: Haleh Keshtkar
Date: August 17, 2017
Water Quality and Contamination
Introduction
Water is one of the most important factors for any animal’s survival (Teixeira, De Azevedo, Mendl, Cipreste, & Young, 2007). One could go for days without food, but could not last the same time without water. Therefore, everyone is often vulnerable to harmful organisms in the water, particularly when he or she is desperate enough for it. Notably, although about seventy percent of the earth’s surface is covered with water, a significant population of people does not have access to clean drinking water (Arheimer, 2016). In response to the demand, the government often avails alternatives to its citizens in the form of tap water, while investors make a more ambitious plan in providing bottled water.
Like any other business, the bottled water investors often seek to make a profit. On the other hand, tap water also comes at a price since the government running the program needs funds to maintain the purification and delivery systems (Whelton et al., 2015). Therefore, it is necessary that the consumers understand whether they get enough value for their money, based on the differences in prices of the different water sources. This experiment hopes to provide, with certainty, the differences between some of the most common sources of water in the household. Since its quality determines the price of a product, the differences in quality, in this case, will be based on the level of contamination.
If Dasani, Fiji, and tap water were tested for mineral components, then tap water would have the highest concentration of minerals, followed by Dasani, while Fiji would contain the least concentration of minerals. The difference would result from the fact that tap water goes through drainage pipes, which could at times be corroded, which adds to the minerals present in the water that could be absent in the Fiji and Dasani water (Dolnicar, Hurlimann, & Grün, 2014). Compared to Fiji, Dasani has more contaminants since I can often taste the minerals when I use the water.
Materials and Methods
To test for the presence of contaminants, different materials were necessary for recording and collection of the water utilized for the test process. We put the test strips in the water for duration of 5, 30, or 45 seconds determining which test was used and compared the strips to the chart after removing them from the water. This was repeated for the ammonia, phosphate, 4 in 1, iron and chloride tests. The charts provided a scale which would then determine the concentration of the iron in either of the Dasani, Fiji, and tap water samples. We then recorded the results on a table for each of the tests. The PH test included the use of jiffy juice, whose 5 ml was added to 25 ml of each of the water ...
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This document summarizes the results of three experiments on water quality and contamination from an online science lab. In Experiment 1, different water samples were observed for characteristics like color and smell after contamination with substances like oil, vinegar, and detergent. Vinegar appeared to have the most potent effect. Experiment 2 tested a water filtration technique using materials like charcoal and sand. The hypothesis that various coagulants could remove contaminants was accepted. Experiment 3 compared tap water to Dasani and Fiji bottled waters using tests for substances like ammonia, chloride, and iron. The results were not entirely clear, but Dasani appeared to have the fewest contaminants overall.
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The document describes an experiment testing how different liquids affect the growth of pansy plants. The hypothesis was that soft drinks and a bathroom concoction would kill the plants, sea water would slowly kill plants, and rain water would allow plants to live happily. Over one week, the plants were given 6 teaspoons of different liquids daily and observed. Results showed tap water and rain water supported best growth, while the bathroom concoction killed the plant. The experiment concludes best choice for pansies is tap water and relates to improving plant growth to help counteract human environmental impacts.
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Jeffery Fairley conducted an experiment over 12 days to examine how acidic beverages affect tooth decay. Eggs were submerged in grape soda, lemonade, or water, with the eggs representing teeth. Over time, the grape soda and lemonade caused the eggs to darken and erode more than the water. pH tests on the fourth day of each trial found grape soda had the lowest pH of 3, indicating the highest acidity, while lemonade and water had pH levels of 4 and 8, respectively. All three trials produced the same results, concluding that highly acidic drinks like grape soda cause the most tooth decay if consumed daily.
Activity-1. Science 7
This document outlines an experiment to determine the effect of organic fertilizer on tomato plant growth. It involves growing 10 tomato plants, with 5 receiving an organic fertilizer treatment and 5 as a control. Over 5 days, the plants will be observed and measurements taken of leaf length and number of leaves. The results will then be analyzed to see if the fertilized plants exhibited faster growth or structural differences compared to the control group. The objective is to utilize the scientific process and draw conclusions about how organic fertilizer affects tomato plant development.
My Science Fair
The document describes an experiment testing how different liquids affect the growth of pansy plants. The hypothesis was that soft drinks and a bathroom concoction would kill the plants, sea water would slowly kill plants, and rain water would allow plants to live happily. Over one week, the plants given tap water, rain water, and sea water survived, while the plant given a bathroom concoction died and the plant given soft drinks showed deteriorating health. The best results were from tap water and rain water. The conclusion is that tap water is the best choice for pansies.
Aarons sf powerpoitn 2012
The document describes an experiment testing how different liquids affect the growth of pansy plants. The hypothesis was that soft drinks and a bathroom concoction would kill the plants, sea water would slowly kill plants, and rain water would allow plants to live happily. Over one week, the plants given tap water, rain water, and sea water survived, while the plant given a bathroom concoction died and the plant given soft drinks showed deteriorating health. The best results were from tap water and rain water. The conclusion is that tap water is the best choice for pansies.
The effects of soil p h on the growth of tomato plant (2)
The document summarizes an experiment on the effects of different soil pH levels on the growth rate of tomato plants. The researchers grew tomato plants in soil with different acid solutions added to manipulate the pH - ascobic acid, carbonic and phosphoric acid, hydrochloric acid, ethanoic acid, and plain water as a control. Over 21 days, the researchers measured the plants' heights daily and observed physical changes to calculate growth rates. They found the hydrochloric acid caused wilting, while ascobic acid produced thicker leaves but fewer leaves compared to other plants. The carbonic and phosphoric acid leaves had a pleasant smell. The ethanoic acid plant showed slow growth. The water plant showed no changes.
Ppt for presentation
The document summarizes an experiment conducted by students to investigate whether natural or chemical fertilizers are more effective at stimulating the growth of green bean plants. They tested various natural substances like bread crust, carrot pulp, and dried leaves as well as chemical fertilizers like potassium bromide and magnesium sulfate. The results showed that magnesium sulfate and distilled water led to the greatest increase in plant growth, while dried leaves and sodium sulfate led to the smallest increase. Overall, the carrot pulp natural fertilizer was most effective, indicating that natural substances may generally promote more green bean plant growth than chemicals.
Presentation Defense
The document summarizes an experiment on the effects of different pH levels of nutrient solutions on the growth of mongo plants in a hydroponic system. Three tanks were set up with acidic, alkaline, and neutral pH levels. The results showed that plants in the acidic tank grew the tallest, while those in the alkaline tank grew the shortest. It was concluded that an acidic pH level is best for cultivating mongo plants hydroponically.
A comparative study of bacteria and fungi associated with spoilage of banana ...
A comparative study of bacteria and fungi associated with spoilage of banana ...BRNSSPublicationHubI
This document reports on a comparative study of bacteria and fungi associated with spoilage of banana and orange sold in Sokoto, Nigeria. Samples of spoiled banana and orange were collected from local markets. The samples were inoculated on nutrient agar and potato dextrose agar to isolate bacteria and fungi, respectively. Bacteria from orange showed a higher number of species than banana. Aspergillus species appeared more frequently in banana samples than orange. Biochemical tests identified isolated bacteria, including Aeromonas, Serratia, Shigella, Proteus, Staphylococcus, and Yersinia species. The results indicate orange contains more microbes due to its high moisture content promoting microbial growth. Proper understanding of spoHerb kitchen gardening agri university By Mr Allah Dad Khan Former DG Agric...
Herb kitchen gardening agri university By Mr Allah Dad Khan Former DG Agriculture Extesion KPK Province Peshawa
Green plants CLASS IV
Chlorophyll in plants absorbs light energy from the sun which is used to force reactions between water and carbon dioxide, resulting in the production of sugar and oxygen. Leaves contain stomata on their undersides and act as the food factory of plants, using photosynthesis to produce sugar from sunlight, carbon dioxide, and water. Plants store extra food as starch in different parts like stems, roots, leaves, flowers, and fruits. A starch test using iodine shows the presence of starch in potato slices. An experiment without light for two days shows that leaves require light for photosynthesis to produce starch. Plants and animals are interdependent as green plants produce food and oxygen while animals produce carbon dioxide, with food chains maintaining
Lab 3 – BiodiversityExperiment 1 Effects of Water Pollution o.docx
Lab 3 – Biodiversity
Experiment 1: Effects of Water Pollution on Plant Diversity
Water pollution can have severely negative effects on biodiversity and ecosystems, particularly on plant populations. In many cases, these pollutants are introduced to the environment through everyday human activity. In this experiment, you will contaminate several water samples, as well as purify a water sample. You will then evaluate the effects of water pollution and purification on the biodiversity of wildflowers.
POST-LAB QUESTIONS
Table 1: Water Observations (smell, color, etc.)
Beaker
Observations
1
2
3
4
5
6
7
8
1.
What effects did each of the contaminants have on the water in the experiment? Use Table 1 for reference.
Answer =
2.
What kinds of human activities could cause oil, acids, and detergents to contaminate the water supply?
Answer =
3.
What are the differences in color, smell, visibility, etc. between the “contaminated” water and the “treated” water?
Answer =
4.
From the introduction to Lab 2, you know that there are typically five steps involved in the water treatment process. Identify the processes (e.g., coagulation) that were used in this lab and describe how they were performed.
Answer =
5. Develop a hypothesis regarding how using contaminated or purified water might affect plant biodiversity. Which pot do you believe will contain the greatest biodiversity (greatest number of species)? Why?
Hypothesis =
Table 2: Number of Plant Species Present in the Pots
Species Observed
Tap Water
Contaminated Water
Purified Water
Zinnia
Y
N
Y
N
Y
N
Marigold
Y
N
Y
N
Y
N
Morning Glory
Y
N
Y
N
Y
N
Cosmos
Y
N
Y
N
Y
N
Ryegrass
Y
N
Y
N
Y
N
Total Number of Species in Pot:
6.
Based on the results of your experiment, would you reject or accept the hypothesis that you produced in question 5?
Explain how you determined this.
Accept/Reject =
7.
Alum contains aluminum. Research the effects of aluminum on plants by finding a scholarly source online. Does your research provide any insight into your results? Discuss your findings as they relate to the results of your experiment.
Answer =
8.
Imagine that each pot was a sample you found in a group of wildflowers. Based on the diversity of flowers in each pot, would you consider the ecosystem to be healthy? Why or why not?
Answer =
9.
How does biodiversity contribute to the overall health of an ecosystem?
Provide specific examples and utilize at least one scholarly resource to back your answer.
Answer =
10.
Rank the following three scenarios in terms of having the most to least biodiversity and provide your rationale for these rankings.
·
A vacant lot behind a car repair facility.
·
A designated national wilderness area.
·
A grassy strip along the highway.
Answer =
References
Any sources utilized should be listed here.
...
Running Head WATER QUALITY AND CONTAMINATION1WATER QUALITY A.docx
Running Head: WATER QUALITY AND CONTAMINATION 1
WATER QUALITY AND CONTAMINATION 7
Water Quality and Contamination
Brenda Rouse
SCI 207: Our Dependence upon the Environment
Instructor: Haleh Keshtkar
Date: August 17, 2017
Water Quality and Contamination
Introduction
Water is one of the most important factors for any animal’s survival (Teixeira, De Azevedo, Mendl, Cipreste, & Young, 2007). One could go for days without food, but could not last the same time without water. Therefore, everyone is often vulnerable to harmful organisms in the water, particularly when he or she is desperate enough for it. Notably, although about seventy percent of the earth’s surface is covered with water, a significant population of people does not have access to clean drinking water (Arheimer, 2016). In response to the demand, the government often avails alternatives to its citizens in the form of tap water, while investors make a more ambitious plan in providing bottled water.
Like any other business, the bottled water investors often seek to make a profit. On the other hand, tap water also comes at a price since the government running the program needs funds to maintain the purification and delivery systems (Whelton et al., 2015). Therefore, it is necessary that the consumers understand whether they get enough value for their money, based on the differences in prices of the different water sources. This experiment hopes to provide, with certainty, the differences between some of the most common sources of water in the household. Since its quality determines the price of a product, the differences in quality, in this case, will be based on the level of contamination.
If Dasani, Fiji, and tap water were tested for mineral components, then tap water would have the highest concentration of minerals, followed by Dasani, while Fiji would contain the least concentration of minerals. The difference would result from the fact that tap water goes through drainage pipes, which could at times be corroded, which adds to the minerals present in the water that could be absent in the Fiji and Dasani water (Dolnicar, Hurlimann, & Grün, 2014). Compared to Fiji, Dasani has more contaminants since I can often taste the minerals when I use the water.
Materials and Methods
To test for the presence of contaminants, different materials were necessary for recording and collection of the water utilized for the test process. We put the test strips in the water for duration of 5, 30, or 45 seconds determining which test was used and compared the strips to the chart after removing them from the water. This was repeated for the ammonia, phosphate, 4 in 1, iron and chloride tests. The charts provided a scale which would then determine the concentration of the iron in either of the Dasani, Fiji, and tap water samples. We then recorded the results on a table for each of the tests. The PH test included the use of jiffy juice, whose 5 ml was added to 25 ml of each of the water ...
The effects of different liquids on plant growthppt
This experiment tested the effects of different liquids on the growth of Boston fern plants over 15 days. Four ferns were given 30 ml daily of either diluted citric acid, a sugar and electrolyte solution, club soda mixed with sugar, or pure water. The hypothesis was that the fern given the sugar and electrolyte solution would show the most growth. Results showed this liquid supported the most growth, while citric acid damaged one plant. The experiment could be improved by controlling variables and repeating trials.
Coloured sweet pepper and grafted tomato project
The document summarizes a demonstration project on sweet peppers and grafted tomatoes, as well as greenhouse tomato production monitoring. It provides results from variety demonstrations of colored sweet peppers and a comparison of grafted versus non-grafted tomatoes. Soil tests and crop assessments were conducted on 4 collaborating farms. Key findings included some pepper varieties requiring support, earlier varieties being more productive, and grafted tomato plants exhibiting more growth and vigor with potential for higher yields. Monitoring tools were used to assess soil fertility, temperature, and irrigation on the farms.
Science fair steps
This document provides step-by-step instructions for conducting a science fair project on the effect of salt on bean seed germination. It outlines the key parts of the project including developing a question, researching background information, stating a hypothesis, designing and carrying out an experiment, collecting and analyzing data, and reporting results. The example project tests whether salt water inhibits bean seed germination compared to plain water by counting sprouted seeds over 6 days.
Lab report
Jeffrey Fairley conducted an experiment over 12 days to test how acidic beverages like grape soda and lemonade affect tooth decay. Eggs were used to represent teeth and submerged in the beverages, with one also in water as a control. Over time, the grape soda egg darkened most while the water egg showed no effects. pH tests found grape soda to have the lowest pH of 3, indicating highest acidity, while lemonade was 4 and water 8. Repeating the experiment twice gave consistent results, confirming that highly acidic drinks like grape soda can cause the most tooth decay if consumed regularly.
Lab 2 – Water Quality and ContaminationExperiment 1 Effects of Gr.docx
This document summarizes the results of three experiments on water quality and contamination from an online science lab. In Experiment 1, different water samples were observed for characteristics like color and smell after contamination with substances like oil, vinegar, and detergent. Vinegar appeared to have the most potent effect. Experiment 2 tested a water filtration technique using materials like charcoal and sand. The hypothesis that various coagulants could remove contaminants was accepted. Experiment 3 compared tap water to Dasani and Fiji bottled waters using tests for substances like ammonia, chloride, and iron. The results were not entirely clear, but Dasani appeared to have the fewest contaminants overall.
The Impact Of Detergent
The student hypothesized that plants watered with laundry detergent would be negatively affected or die. In an experiment, the student planted violets and watered them with either plain water, water mixed with Tide detergent, or water mixed with a chemical-free detergent. The plant watered with Tide died within 4 days while the others grew healthily. The student concluded that Tide contains harmful chemicals while the chemical-free detergent did not negatively impact plant growth, showing that detergent ingredients can harm plants and further research is needed on their environmental impacts.
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Think & Study Green - The effects of acid rain on plants
- 1. Erasmus+ KA1 Youth in action mobility project “Think and study green” 2016-3-HR01-KA105- 034834 Teacher: Giovanna Fazzina Class 2 E “Liceo scientifico” School Year 2016-2017
- 2. Osnovna Skola Jabukovac Zagreb, Croatia Liceo Scientifico Corbino Siracusa, Italy
- 3. This is what we did to ‘’Think and Study Green’’… WE SIMULATED THE EFFECT OF ACID RAIN ON PLANTS
- 5. What we did in the science laboratory We tested the effect of acid rain on BEANS
- 6. We tested the effect of acid rain on GERANIUM PLANTS What we did in the science laboratory
- 7. We tested the effect of acid rain on GERANIUM PLANTS WITH FLOWERS What we did in the science laboratory
- 8. We evaluated the effect of acid rain on GERANIUM PLANT PETALS What we did in the science laboratory
- 9. How we created acid rain We prepared three bottles: 1. One containing tap water 2. One containing 475 ml of tap water and 25 ml of vinegar 3. One containing 400 ml of tap water and 100 ml of vinegar We checked the pH of the three solutions
- 10. We placed the seed samples in a dark place and we kept them moist. We put the geranium plant samples next to each other, so they could get the same amount of sunlight. What we did day by day, from day 0 to day 20
- 11. We watered and sprayed our plant samples every two days using the proper solution, each time. What we did day by day from day 0 to day 20
- 12. Day by day, we wrote down in a table our data: -height -changes in color -general aspect What we did day by day from day 0 to day 20
- 13. We prepared some slides using geranium petals and we examined them using the light microscope. What we did day by day from day 0 to day 20
- 14. Experiment 1 RESULTS The effect of acid rain on seed germination DAY 0 DAY 10 DAY 20
- 15. Experiment 1 RESULTS The effect of acid rain on seed germination DAY 20 a lot of acidDAY 20 tap water
- 16. DAY 0 DAY 10 DAY 20 Experiment 2 RESULTS The effect of acid rain on geranium plant growth
- 17. DAY 20 tap water Experiment 2 RESULTS The effect of acid rain on geranium plant growth DAY 20 a lot of acid
- 18. DAY 0 DAY 10 DAY 20 Experiment 3 RESULTS The effect of acid rain on geranium plants and flowers
- 19. Experiment 3 RESULTS The effect of acid rain on geranium plants and flowers DAY 20 tap water DAY 20 a lot of acid
- 20. Experiment 3 RESULTS The effect of acid rain on geranium flowers DAY 20 a lot of acidDAY 20 tap water
- 21. Geranium plant without flowers: plant 1-tap water Time (days) Leaf color or general aspect Plant height (cm) Plant general aspect (sick/healthy) Other characteristic 0 Green 5 Healthy 5 Green 5.5 Healthy 10 Brigth green 6 Healthy 15 Bright green 6 Healthy With buds 20 Brigth green 7.5 Healthy With buds
- 22. Time (days) Leaf color or general aspect Plant height (cm) Plant general aspect (sick/healthy) Other characteristics 0 Green 5.5 Healthy 5 Dark green 6 Healthy 10 Dark green 6 Quite healthy One leaf yellow 15 Dark green 5.4 Sick A few leaves brown 20 Dark green 4.5 Dead Some leaves dead Geranium plant without flowers: plant 2-a little acid
- 23. Time (days) Leaf color or general aspect Plant height (cm) Plant general aspect (sick/healthy) Other characteristics 0 Green 5.5 Healthy 5 Bright green 5.5 Quite healthy Some leaves yellow 10 Dark green 6 Sick All leaves yellow 15 Brown 4 Sick Only one yellow leaf left 20 Dark 2.5 Dead No leaves Geranium plant without flowers: plant 3-a lot of acid
- 24. Time (days) Leaf color Petal color Plant height (cm) Plant general aspect (sick/healthy) 0 Green Light red 6 Healthy 5 Green Light red 6.5 Healthy 10 Green Red 8 Healthy 15 Green Red 10.5 Healthy 20 Green Bright red 13 Healthy Geranium plant with flowers: plant 1-tap water
- 25. Time (days) Leaf color Petal color Plant height (cm) Plant general aspect (sick/healthy) 0 Green Light red 5.5 Healthy 5 Green Light red 7.5 Healthy 10 Green Red 8 Healthy 15 Green Red 10 Healthy 20 Green Bright red 12 Quite healthy Geranium plant with flowers: plant 2-a little acid
- 26. Time (days) Leaf color Petal color Plant height (cm) Plant general aspect (sick/healthy) 0 Green Light red 6 Healthy 5 Green Red 7 Healthy 10 Dark green Red 8 Quite healthy 15 Light yellow Dark red/Black 9.5 Sick 20 Light brown Dark red/Black 11.5 Dead Geranium plant with flowers: plant 3-a lot of acid
- 27. Petal cells of plant 3-a lot of acid, observed under the light microscope DAY 0 DAY 10 DAY 20 Experiment 4 RESULTS
- 28. Petals from plant 1-tap water, soacked in: • DISTILLED WATER SLIDE 1 • TAP WATER SLIDE 2 • ACID SLIDE 3 SOAKED FOR 15 MINUTES SOAKED FOR 30 MINUTES Experiment 4 RESULTS
- 29. DISTILLED WATER TAP WATER ACID Experiment 4 RESULTS Petal cells from plant 1-tap water after 30 minutes
- 30. CONCLUSIONS OUR RESULTS SHOWED THAT ACID RAIN IS DANGEROUS FOR PLANTS, AND IN PARTICULAR IT AFFECTS: • SEED GERMINATION • PLANT GROWTH • FLOWER AND LEAF COLOUR • PLANT HEALTH IN GENERAL
- 31. WE ALL AGREE THAT WE SHOULD… STOP DESTROYING FORESTS, STOP CUTTING DOWN TREES STOP POISONING FISH AND THE WATER PEOPLE DRINK TRY TO RECYCLE AND CUT ON WAISTING USE RENEWABLE SOURCES OF ENERGY, WALK OR RIDE BIKES
- 32. WHAT SHALL WE DO WHEN THE LAST TREE IS CUT DOWN? WHEN THE LAST FISH IS POISONED? WHEN THERE WON’T BE ANY WATER, OR FLOWERS, OR LEAVES? SHALL WE THEN REALIZE WE CANNOT EAT MONEY OR OUR NEW PAIR OF JEANS?
- 33. …WE ALSO AGREE THAT THIS IS A MUCH BETTER VIEW! Vendicari Ciane river Vendicari