Why do leaves change colors
•Download as PPTX, PDF•
1 like•1,811 views
Leaves change color in the fall due to a process related to daylight hours. As days grow shorter in fall, chlorophyll production slows and the green pigment breaks down, revealing other colors like yellows, oranges and reds that were there all along. Different tree species like maples, oaks and aspens exhibit distinctive fall colors. Fallen leaves decompose to enrich the soil as part of the natural cycle.
Report
Share
Report
Share
Recommended
Plants teresa and laura s
This document discusses the key parts of plants - roots, stems, and leaves. It explains that roots take in water and hold the plant in the ground, stems carry water and support the plant, and leaves collect sunlight to photosynthesize and make food. The document also covers flowers, fruits, seeds, and why plants are an important food source for humans and animals.
Photosynthesis
The document presents information about photosynthesis. It defines photosynthesis as the process by which plants use sunlight, carbon dioxide, and water to produce food (glucose) and oxygen. The key requirements for photosynthesis are explained as water, carbon dioxide, light energy from the sun, and chlorophyll. The document also notes that photosynthesis occurs within chloroplasts in the leaves of plants and describes the basic photosynthesis equation and products.
Photosynthesis
Photosynthesis is the process by which plants, algae, and some bacteria use sunlight, water and carbon dioxide to produce oxygen and energy in the form of sugar. It occurs in two stages: in stage one, chloroplasts in plant cells capture sunlight and use its energy to power stage two, where carbon dioxide and water are converted into oxygen and glucose using an enzyme-driven process. Cellular respiration is the process by which cells generate energy by breaking down glucose molecules in the presence of oxygen. It also occurs in two stages: in stage one, glucose is broken down into smaller molecules in the cytoplasm, and in stage two these molecules are further broken down in the mitochondria to release energy, carbon dioxide and water.
Growing plants
The document summarizes key concepts about the world of plants including plant reproduction, pollination, fertilization, seed dispersal, and asexual reproduction. It discusses the life cycle and structure of plants and flowers. It also covers commercial plant propagation techniques like cuttings and grafting which allow for consistent production of desired plant varieties.
Light and formation of shadows
This document provides an overview of light and how it behaves. It discusses key topics like:
1) Light sources can be luminous (emit their own light) like the sun, or non-luminous (do not emit light) like planets. Light travels in straight lines.
2) When light hits an object, it can be reflected, allowing us to see the object. Plane mirrors form images that are upright, the same size, and laterally inverted compared to the object.
3) A pinhole camera can be used to form small, inverted, and real images of outside objects by passing light through a small hole into a box. Natural pinhole cameras are formed when sunlight passes through gaps
Photosynthesis ppt
This PowerPoint presentation covers photosynthesis and was last revised in June 2008. It contains 27 slides discussing topics like the light and dark reactions of photosynthesis, chloroplast structure, and how plants use light energy from the sun to produce glucose and oxygen from water and carbon dioxide. The document provides an overview of photosynthesis and its key stages and equations.
Photosynthesis
Photosynthesis is the process by which plants, algae, and some bacteria use sunlight, water and carbon dioxide to produce oxygen and energy in the form of glucose. It takes place in chloroplasts and involves two stages - the light-dependent reactions where energy from sunlight is captured and converted to chemical energy in the form of ATP and NADPH, and the light-independent reactions where carbon dioxide is fixed into organic compounds like glucose using the ATP and NADPH produced in the light reactions. Many environmental factors like temperature, light intensity, water availability and carbon dioxide concentration can affect the rate of photosynthesis.
Nutrition in plants
this is a ppt on nutrition in plants .hope it helps to friends to understand the concept really well.
thank you
Recommended
Plants teresa and laura s
This document discusses the key parts of plants - roots, stems, and leaves. It explains that roots take in water and hold the plant in the ground, stems carry water and support the plant, and leaves collect sunlight to photosynthesize and make food. The document also covers flowers, fruits, seeds, and why plants are an important food source for humans and animals.
Photosynthesis
The document presents information about photosynthesis. It defines photosynthesis as the process by which plants use sunlight, carbon dioxide, and water to produce food (glucose) and oxygen. The key requirements for photosynthesis are explained as water, carbon dioxide, light energy from the sun, and chlorophyll. The document also notes that photosynthesis occurs within chloroplasts in the leaves of plants and describes the basic photosynthesis equation and products.
Photosynthesis
Photosynthesis is the process by which plants, algae, and some bacteria use sunlight, water and carbon dioxide to produce oxygen and energy in the form of sugar. It occurs in two stages: in stage one, chloroplasts in plant cells capture sunlight and use its energy to power stage two, where carbon dioxide and water are converted into oxygen and glucose using an enzyme-driven process. Cellular respiration is the process by which cells generate energy by breaking down glucose molecules in the presence of oxygen. It also occurs in two stages: in stage one, glucose is broken down into smaller molecules in the cytoplasm, and in stage two these molecules are further broken down in the mitochondria to release energy, carbon dioxide and water.
Growing plants
The document summarizes key concepts about the world of plants including plant reproduction, pollination, fertilization, seed dispersal, and asexual reproduction. It discusses the life cycle and structure of plants and flowers. It also covers commercial plant propagation techniques like cuttings and grafting which allow for consistent production of desired plant varieties.
Light and formation of shadows
This document provides an overview of light and how it behaves. It discusses key topics like:
1) Light sources can be luminous (emit their own light) like the sun, or non-luminous (do not emit light) like planets. Light travels in straight lines.
2) When light hits an object, it can be reflected, allowing us to see the object. Plane mirrors form images that are upright, the same size, and laterally inverted compared to the object.
3) A pinhole camera can be used to form small, inverted, and real images of outside objects by passing light through a small hole into a box. Natural pinhole cameras are formed when sunlight passes through gaps
Photosynthesis ppt
This PowerPoint presentation covers photosynthesis and was last revised in June 2008. It contains 27 slides discussing topics like the light and dark reactions of photosynthesis, chloroplast structure, and how plants use light energy from the sun to produce glucose and oxygen from water and carbon dioxide. The document provides an overview of photosynthesis and its key stages and equations.
Photosynthesis
Photosynthesis is the process by which plants, algae, and some bacteria use sunlight, water and carbon dioxide to produce oxygen and energy in the form of glucose. It takes place in chloroplasts and involves two stages - the light-dependent reactions where energy from sunlight is captured and converted to chemical energy in the form of ATP and NADPH, and the light-independent reactions where carbon dioxide is fixed into organic compounds like glucose using the ATP and NADPH produced in the light reactions. Many environmental factors like temperature, light intensity, water availability and carbon dioxide concentration can affect the rate of photosynthesis.
Nutrition in plants
this is a ppt on nutrition in plants .hope it helps to friends to understand the concept really well.
thank you
Presentation for the sound lesson
Sound is a form of energy that is created by vibrations and travels in waves. It can be heard when these vibrations reach our ears. The document defines sound and explains that louder sounds have higher amplitudes in their waves while softer sounds have lower amplitudes. It also describes that pitch is determined by the speed of the vibrations, with faster vibrations creating higher pitches and slower vibrations making lower pitches. Volume and pitch are the main characteristics used to describe different sounds.
changes around us class 6 ppt
The document discusses different types of changes that occur in nature. It defines a change as an act or process through which something becomes different. It then classifies changes into categories such as slow vs. fast changes, natural vs. man-made changes, reversible vs. irreversible changes, periodic vs. non-periodic changes, and physical vs. chemical changes. Examples are provided for each type of change. The document also discusses causes of changes and conditions like interaction, mixing, and heating that can favor changes occurring.
Why does it seems that the sun move
The document discusses the apparent and real motions of the sun, earth, and stars. It explains that the sun appears to move across the sky each day, but it is actually the earth that rotates daily on its axis, causing day and night. The earth also revolves around the sun once per year. The earth's tilted axis and revolution around the sun together cause the seasons by changing the angle at which sunlight strikes different parts of the earth through the year. Shadows appear in different positions depending on the time of day due to changes in the sun's position as earth rotates.
Light and Shadow
Light travels in straight lines and can be reflected or refracted. There are three types of materials: transparent, translucent, and opaque. Shadows are formed when an object blocks light. The length and shape of a shadow depends on the position of the light source and object. An experiment was conducted to determine which material - transparent plastic, tissue paper, or black paper - makes the darkest shadow. Black paper produced the darkest shadow because it is opaque and does not let any light pass through.
Parts of a plant/plant life cycle (teach)
Basic presentation of the parts of a plant and of the life cycle of plants. Pitched at about the 2nd, 3rd or 4th grade level. Lots of descriptive pictures and diagrams.
Plant adaptations (teach)
The document summarizes many plant adaptations based on their environmental conditions. It discusses how desert plants store water and reduce water loss through waxy coatings, spines, and deep root systems. Grassland plants like those in savannas and prairies extend roots deep into the ground and have narrow leaves. Forest plants vary by region - tropical rainforest trees have buttresses and stilt roots, deciduous trees drop leaves, and coniferous trees have needle-like waxy leaves and shed snow well. Tundra plants are low-growing and have shallow roots to survive the harsh Arctic conditions. Overall, the document shows how plants have remarkably adapted to their environments to obtain water, sunlight, and reproduce.
SEPARATION OF SUBSTANCE -SCIENCE (NCERT) CLASS-VI
1. The document discusses various methods of separating mixtures into pure substances, including handpicking, sieving, magnetic separation, sedimentation, decantation, filtration, evaporation, distillation, and churning.
2. Separation methods work by exploiting differences in properties like particle size, density, melting/boiling points between components of a mixture. Magnetic separation separates out iron filings. Sieving and winnowing separate components by size.
3. Specific techniques are used to separate insoluble solids from liquids, including sedimentation, decantation, coagulation/loading, and filtration. Distillation separates components by selective boiling and condensation.
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
Photosynthesis powerpoint 1
Plants perform photosynthesis, which requires carbon dioxide, water, and sunlight. Through photosynthesis, plants breathe in carbon dioxide and water to produce oxygen and glucose using chlorophyll and energy from sunlight. This glucose is converted into food for the plant and building materials to allow it to grow.
Grade 2 the water cycle
The water cycle describes how water is recycled on Earth through evaporation, condensation, and precipitation. Water evaporates from bodies of water into vapor and rises into the air, condenses to form clouds, and precipitates back down to the Earth's surface as rain, snow, or other forms, where it is collected in bodies of water once more to repeat the cycle.
Class 7th Chapter 6 PHYSICAL AND CHEMICAL CHANGES.pptx
The document discusses physical and chemical changes, providing examples of each type of change and explaining the key differences between them. Physical changes alter a substance's physical properties but do not create new substances, while chemical changes produce one or more new substances through chemical reactions that may give off or absorb heat, light, or gases. The document then examines several chemical changes like burning, rusting, and crystallization in more detail to illustrate the concepts.
Powerpoint respiration
1. Respiration is the process by which living cells produce energy from food sources like glucose.
2. Aerobic respiration uses oxygen to fully break down glucose into carbon dioxide and water, producing more energy. Anaerobic respiration breaks down glucose without oxygen, producing less energy.
3. In humans, muscles use anaerobic respiration during intense exercise when oxygen delivery is insufficient, producing lactic acid as a byproduct which must later be broken down.
Class-6th Science chapter-12 Electricity and Circuits part-1
electricity and it's supply to our homes
Cell, buld , torch-how they work and produce light
explanation of electric cell
Earth`s patterns
1) Earth spins on its axis once every 24 hours, causing day and night. The side of Earth facing the sun experiences day, while the opposite side experiences night.
2) Earth also revolves around the sun once every year. As it revolves, its tilted axis remains pointed in the same direction, causing seasons.
3) The tilt of Earth's axis and its revolution around the sun cause the four seasons - spring, summer, fall, and winter - in the northern and southern hemispheres.
1. photosynthesis
Grade 8 Notes for Photosynthesis. Text taken from DocScientia Natural Science Textbook and workbook by Santie du Plessis, et al. CAPS - aligned.
Nutrition in plants
This document summarizes key concepts from a chapter on plant nutrition and photosynthesis:
1. Photosynthesis converts sunlight into chemical energy that plants use to produce carbohydrates from carbon dioxide and water, and it releases oxygen as a byproduct. Glucose produced can be used for energy, cell walls, fats, proteins, or stored as starch.
2. Leaves are structured for maximum photosynthesis, with waxy cuticles to reduce water loss, and stomata and mesophyll layers for gas exchange. Carbon dioxide enters leaves through stomata while water enters through the roots and xylem.
3. The main requirements for photosynthesis are sunlight, chlorophyll, carbon dioxide,
1.7 dichotomous keys-set-2-qp
This document appears to be a lesson plan on keys and key signatures. It discusses the different types of keys and how they are notated on the musical staff with sharps and flats. The lesson teaches students to identify key signatures by sight based on the pattern of sharps or flats used in the key.
CHANGES AROUND US (SCIENCE CLASS VI)
Let us now try and define change for the purpose of science. We can define it as an act by which a thing forms or becomes different than its previous self. For instance, when ice melts, it changes into water. Therefore it turns its form from solid to liquid.
Photosynthesis for Kids
Plants and other organisms use photosynthesis to convert light energy from the Sun into chemical energy. Photosynthesis involves using carbon dioxide, water, and light energy to produce glucose and oxygen. Key inputs are carbon dioxide, water, and light energy. Key outputs are glucose and oxygen.
Nutrition in plants
Class 7 Chapter 1
Nutrition in Plants
Hey everyone, I am a student, Aanya Bhatnagar and I can understand that from which type of ppt will we understand the concept. I have tried very much!
Hope you like it!
ICT Resource
This document provides a lesson plan on patterns for early primary students. It begins with defining what a pattern is. Students will participate in warm-up activities counting numbers and identifying the number before and after in a sequence. They will analyze example two and three pattern sequences and be asked to continue the patterns. For independent practice, students will create their own two and three pattern sequences in their workbooks using shapes. Finally, students will take turns sharing their pattern work with the class.
Cardboard Loom
This document provides instructions for making a simple cardboard loom and weaving a coaster at home. It explains that looms are used to connect fibers like cotton, wool, or willow to make woven items. Students are instructed to gather materials like cardboard, craft sticks, string, and yarn. The directions show how to tape the craft sticks to the cardboard to form the base, warp the strings across, and weave back and forth with yarn until a coaster is completed. Finishing involves tying knots in the strings. Students are invited to learn more about weaving by visiting a museum exhibit on weavers from Mexico.
More Related Content
What's hot
Presentation for the sound lesson
Sound is a form of energy that is created by vibrations and travels in waves. It can be heard when these vibrations reach our ears. The document defines sound and explains that louder sounds have higher amplitudes in their waves while softer sounds have lower amplitudes. It also describes that pitch is determined by the speed of the vibrations, with faster vibrations creating higher pitches and slower vibrations making lower pitches. Volume and pitch are the main characteristics used to describe different sounds.
changes around us class 6 ppt
The document discusses different types of changes that occur in nature. It defines a change as an act or process through which something becomes different. It then classifies changes into categories such as slow vs. fast changes, natural vs. man-made changes, reversible vs. irreversible changes, periodic vs. non-periodic changes, and physical vs. chemical changes. Examples are provided for each type of change. The document also discusses causes of changes and conditions like interaction, mixing, and heating that can favor changes occurring.
Why does it seems that the sun move
The document discusses the apparent and real motions of the sun, earth, and stars. It explains that the sun appears to move across the sky each day, but it is actually the earth that rotates daily on its axis, causing day and night. The earth also revolves around the sun once per year. The earth's tilted axis and revolution around the sun together cause the seasons by changing the angle at which sunlight strikes different parts of the earth through the year. Shadows appear in different positions depending on the time of day due to changes in the sun's position as earth rotates.
Light and Shadow
Light travels in straight lines and can be reflected or refracted. There are three types of materials: transparent, translucent, and opaque. Shadows are formed when an object blocks light. The length and shape of a shadow depends on the position of the light source and object. An experiment was conducted to determine which material - transparent plastic, tissue paper, or black paper - makes the darkest shadow. Black paper produced the darkest shadow because it is opaque and does not let any light pass through.
Parts of a plant/plant life cycle (teach)
Basic presentation of the parts of a plant and of the life cycle of plants. Pitched at about the 2nd, 3rd or 4th grade level. Lots of descriptive pictures and diagrams.
Plant adaptations (teach)
The document summarizes many plant adaptations based on their environmental conditions. It discusses how desert plants store water and reduce water loss through waxy coatings, spines, and deep root systems. Grassland plants like those in savannas and prairies extend roots deep into the ground and have narrow leaves. Forest plants vary by region - tropical rainforest trees have buttresses and stilt roots, deciduous trees drop leaves, and coniferous trees have needle-like waxy leaves and shed snow well. Tundra plants are low-growing and have shallow roots to survive the harsh Arctic conditions. Overall, the document shows how plants have remarkably adapted to their environments to obtain water, sunlight, and reproduce.
SEPARATION OF SUBSTANCE -SCIENCE (NCERT) CLASS-VI
1. The document discusses various methods of separating mixtures into pure substances, including handpicking, sieving, magnetic separation, sedimentation, decantation, filtration, evaporation, distillation, and churning.
2. Separation methods work by exploiting differences in properties like particle size, density, melting/boiling points between components of a mixture. Magnetic separation separates out iron filings. Sieving and winnowing separate components by size.
3. Specific techniques are used to separate insoluble solids from liquids, including sedimentation, decantation, coagulation/loading, and filtration. Distillation separates components by selective boiling and condensation.
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
Photosynthesis powerpoint 1
Plants perform photosynthesis, which requires carbon dioxide, water, and sunlight. Through photosynthesis, plants breathe in carbon dioxide and water to produce oxygen and glucose using chlorophyll and energy from sunlight. This glucose is converted into food for the plant and building materials to allow it to grow.
Grade 2 the water cycle
The water cycle describes how water is recycled on Earth through evaporation, condensation, and precipitation. Water evaporates from bodies of water into vapor and rises into the air, condenses to form clouds, and precipitates back down to the Earth's surface as rain, snow, or other forms, where it is collected in bodies of water once more to repeat the cycle.
Class 7th Chapter 6 PHYSICAL AND CHEMICAL CHANGES.pptx
The document discusses physical and chemical changes, providing examples of each type of change and explaining the key differences between them. Physical changes alter a substance's physical properties but do not create new substances, while chemical changes produce one or more new substances through chemical reactions that may give off or absorb heat, light, or gases. The document then examines several chemical changes like burning, rusting, and crystallization in more detail to illustrate the concepts.
Powerpoint respiration
1. Respiration is the process by which living cells produce energy from food sources like glucose.
2. Aerobic respiration uses oxygen to fully break down glucose into carbon dioxide and water, producing more energy. Anaerobic respiration breaks down glucose without oxygen, producing less energy.
3. In humans, muscles use anaerobic respiration during intense exercise when oxygen delivery is insufficient, producing lactic acid as a byproduct which must later be broken down.
Class-6th Science chapter-12 Electricity and Circuits part-1
electricity and it's supply to our homes
Cell, buld , torch-how they work and produce light
explanation of electric cell
Earth`s patterns
1) Earth spins on its axis once every 24 hours, causing day and night. The side of Earth facing the sun experiences day, while the opposite side experiences night.
2) Earth also revolves around the sun once every year. As it revolves, its tilted axis remains pointed in the same direction, causing seasons.
3) The tilt of Earth's axis and its revolution around the sun cause the four seasons - spring, summer, fall, and winter - in the northern and southern hemispheres.
1. photosynthesis
Grade 8 Notes for Photosynthesis. Text taken from DocScientia Natural Science Textbook and workbook by Santie du Plessis, et al. CAPS - aligned.
Nutrition in plants
This document summarizes key concepts from a chapter on plant nutrition and photosynthesis:
1. Photosynthesis converts sunlight into chemical energy that plants use to produce carbohydrates from carbon dioxide and water, and it releases oxygen as a byproduct. Glucose produced can be used for energy, cell walls, fats, proteins, or stored as starch.
2. Leaves are structured for maximum photosynthesis, with waxy cuticles to reduce water loss, and stomata and mesophyll layers for gas exchange. Carbon dioxide enters leaves through stomata while water enters through the roots and xylem.
3. The main requirements for photosynthesis are sunlight, chlorophyll, carbon dioxide,
1.7 dichotomous keys-set-2-qp
This document appears to be a lesson plan on keys and key signatures. It discusses the different types of keys and how they are notated on the musical staff with sharps and flats. The lesson teaches students to identify key signatures by sight based on the pattern of sharps or flats used in the key.
CHANGES AROUND US (SCIENCE CLASS VI)
Let us now try and define change for the purpose of science. We can define it as an act by which a thing forms or becomes different than its previous self. For instance, when ice melts, it changes into water. Therefore it turns its form from solid to liquid.
Photosynthesis for Kids
Plants and other organisms use photosynthesis to convert light energy from the Sun into chemical energy. Photosynthesis involves using carbon dioxide, water, and light energy to produce glucose and oxygen. Key inputs are carbon dioxide, water, and light energy. Key outputs are glucose and oxygen.
Nutrition in plants
Class 7 Chapter 1
Nutrition in Plants
Hey everyone, I am a student, Aanya Bhatnagar and I can understand that from which type of ppt will we understand the concept. I have tried very much!
Hope you like it!
What's hot (20)
Class 7th Chapter 6 PHYSICAL AND CHEMICAL CHANGES.pptx
Class 7th Chapter 6 PHYSICAL AND CHEMICAL CHANGES.pptx
Class-6th Science chapter-12 Electricity and Circuits part-1
Class-6th Science chapter-12 Electricity and Circuits part-1
Viewers also liked
ICT Resource
This document provides a lesson plan on patterns for early primary students. It begins with defining what a pattern is. Students will participate in warm-up activities counting numbers and identifying the number before and after in a sequence. They will analyze example two and three pattern sequences and be asked to continue the patterns. For independent practice, students will create their own two and three pattern sequences in their workbooks using shapes. Finally, students will take turns sharing their pattern work with the class.
Cardboard Loom
This document provides instructions for making a simple cardboard loom and weaving a coaster at home. It explains that looms are used to connect fibers like cotton, wool, or willow to make woven items. Students are instructed to gather materials like cardboard, craft sticks, string, and yarn. The directions show how to tape the craft sticks to the cardboard to form the base, warp the strings across, and weave back and forth with yarn until a coaster is completed. Finishing involves tying knots in the strings. Students are invited to learn more about weaving by visiting a museum exhibit on weavers from Mexico.
Lis 120 Powerpoint
Kindergarten students will learn about patterns, including AB, ABB, and ABC patterns. They will classify and sort objects, identify patterns, copy and extend patterns. Activities include playing classification games to reinforce math vocabulary, sorting objects by attributes, creating and finishing patterns, and matching patterns to their type. Teachers can use pattern cards and activities where students copy, extend, compare and discuss patterns.
Navajo Weavings
The document describes the process of making Navajo weavings. It follows Mae Beth, a Navajo woman, as she shears wool from sheep, cleans and cards the wool, spins it into yarn, dyes the yarn using plants, and weaves the yarn into a rug using a loom in her home. The process details how the Navajo people of the southwestern United States make traditional weavings from the raw wool of sheep.
Kindergarten lesson on patterning
This document provides a lesson plan template for teaching patterns and relations to kindergarten students. It includes sections for identifying the learning outcomes, planning instructional activities and assessments, and next steps. The lesson focuses on having students identify, reproduce, extend, and create repeating patterns using manipulatives like shells. Students will sort shells into sets according to attributes and sorting rules. They will explore patterns through activities using shells, play dough, and clapping patterns. Assessment involves observing students and documenting their understanding of patterns, sets, attributes and sorting.
Navajo Weaving by Karina Chaves
The Navajo Reservation spans parts of Utah, Arizona, New Mexico and Colorado, surrounded by four sacred mountains. Navajo people are renowned weavers, with traditions passed down from Spider Man and Spider Woman. Weaving evolved from blankets to rugs over time as markets developed. The process is very labor intensive, taking over 300 hours to make one blanket. While weaving was an important cultural tradition, many modern Navajo have turned to other jobs due to the limited economic opportunities in weaving.
L2t ocean
This document provides teaching resources for a thematic ocean unit focused on different sea animals like turtles, dolphins, sea horses, and more. It includes over 100 pages of math, writing, and reading activities such as pattern cards, tracing worksheets, counting books, and arts and crafts projects. The resources are designed to teach skills like patterns, numbers, addition, colors, and literacy in a way that is engaging for young elementary school students.
Interactive resources
This document provides resources for teaching math and science concepts as part of a kindergarten life skills unit. It outlines the Washington State kindergarten math and science standards that would be covered. It then describes and provides links to interactive games and activities for teaching concepts like patterns, money, nutrition, recycling, plants and animals. The games aim to make learning fun for kindergarteners and allow them to practice skills like counting, comparing quantities, problem solving and pattern recognition. A list of all the resource links is provided.
Viewers also liked (8)
Similar to Why do leaves change colors
Why do leaves change colors in the fall? (with voice recording)
Leaves change color in the fall due to a process related to daylight hours. As days grow shorter in fall, chlorophyll production slows and the green pigment breaks down, revealing other colors like yellows, oranges and reds that were there all along. Different tree species like maples and oaks exhibit distinctive fall colors. Fallen leaves decompose to enrich the soil as part of the natural cycle.
C:\Fakepath\97 2003 Presentation
This document discusses why leaves change color in the fall. It explains that leaves produce chlorophyll in the spring and summer, which gives them their green color. In fall, as daylight decreases and temperatures drop, leaves stop producing chlorophyll. This allows the carotenoid pigments like yellow and orange, and anthocyanin pigments like red, to show through. Warmer days and cooler nights result in more sugars being trapped in leaves, producing more vibrant fall colors. The document concludes that leaf color change is an important part of the plant lifecycle.
Educ W200 Power Point
This document discusses why leaves change color in the fall. It explains that leaves produce chlorophyll in the spring and summer, which gives them their green color. In fall, as daylight decreases and temperatures drop, leaves stop producing chlorophyll. This allows the carotenoid pigments like yellow and orange, and anthocyanin pigments like red, to show through. Warmer days and cooler nights result in more sugars being trapped in leaves, producing more vibrant fall colors. The document concludes that leaf color change is an important part of the plant lifecycle.
Plants and their parts wiki
Plants have several key parts that allow them to grow and survive. Roots anchor the plant and absorb water and nutrients from the soil. Some plants store food in their roots. Roots can be taproots or fibrous. Stems support the plant, carry water and nutrients throughout, and come in different forms like flexible green stems or stiff woody trunks. Leaves contain chlorophyll and are the main site of photosynthesis, where plants use sunlight, carbon dioxide, and water to produce oxygen and food (sugar). While plants vary in shape and size, they all share characteristics like having the same basic parts, producing their own food, and being unable to move.
The Changing Leaves of Autumn
The document discusses the process of leaf color change in autumn. It explains that there are three main pigments in leaves - chlorophyll, carotenoids, and anthocyanins. As nights get cooler in fall, chlorophyll production slows and carotenoids and anthocyanins are revealed, resulting in the yellow, orange, and red colors seen. Leaves eventually fall from trees as veins close off and nutrients are transported back to the tree for storage over winter.
Photosynthesis
Photosynthesis allows plants to make their own food by capturing light energy using chlorophyll in their leaves. The process requires carbon dioxide, water, and minerals that are used to build carbohydrates like sugar. Plants use some sugar for energy but also store it. Leaves need carbon dioxide from the air, water from roots, and sunlight to start photosynthesis. Inside the leaf, chlorophyll in chloroplasts captures sunlight which is converted to chemical energy to produce oxygen and sugar from carbon dioxide and water. Leaves change colors in fall because lack of sunlight and water cause chlorophyll to disappear, revealing hidden colors.
Fotosintesis
Plants use photosynthesis to produce their own food, while animals cannot. During photosynthesis, plants take in carbon dioxide through stomata in their leaves and water through their roots. Using energy from sunlight captured by chlorophyll, plants combine carbon dioxide and water to produce oxygen and sugars as food. Plants store this extra food as sugar and starch in different parts of the plant like grapes and corn. All living things need energy from food to grow, move, and carry out other functions, with plants producing oxygen and food for animals and themselves through photosynthesis.
Sedlcarter
Plants use photosynthesis to produce their own food, while animals cannot. During photosynthesis, plants take in carbon dioxide through stomata in their leaves and water through their roots. Using energy from sunlight captured by chlorophyll, plants combine carbon dioxide and water to produce oxygen and sugars as food. Plants store this extra food as sugar and starch in their tissues. All living things, including plants and animals, require energy from food to carry out functions like growth, movement, and tissue repair.
IGCSE Photosythesis
Plants undergo photosynthesis, a process where sunlight, carbon dioxide, and water are converted into glucose and oxygen. Chlorophyll in the leaf absorbs sunlight, which is then used along with carbon dioxide from the air and water from the soil to produce glucose and oxygen through a chemical reaction. The glucose is used for plant growth and any excess is stored as starch. Minerals absorbed from the soil like nitrogen, potassium, and magnesium are also required to support plant growth and production of chlorophyll. Leaves are adapted for efficient photosynthesis through features like a large surface area, thinness to allow for gas exchange, and specialized cells containing chloroplasts where the reaction occurs.
The importance of tee's and plants
The document discusses the importance of trees and their role in the environment. It explains that trees produce oxygen through photosynthesis, absorb carbon dioxide to reduce the greenhouse gas effect, and help bring rain through evaporative cooling. Trees also increase property values, support wildlife, and are important for human survival through oxygen production. However, falling trees can also cause property damage during storms. The document covers various topics about tree anatomy, growth, types of trees, and their religious and economic significance.
How plants works
The document discusses key concepts about how plants work through photosynthesis. It explains that plants produce their own food (glucose) through photosynthesis using carbon dioxide, water and light energy to produce glucose and oxygen. Energy from the sun is captured and stored as chemical energy in glucose. Plants are then an important source of food and oxygen for animals. The document outlines plant structures like roots, stems, leaves and flowers and their functions. It also discusses the process of photosynthesis and experiments that can be done to study it.
What is photosynthesis
Photosynthesis is the process by which plants use sunlight, carbon dioxide, and water to produce oxygen and energy in the form of sugar. It occurs through the chlorophyll in leaves, which captures sunlight that is then used to combine carbon dioxide and water into oxygen and glucose. The glucose provides an energy source for the plant. Photosynthesis requires sunlight, carbon dioxide from the air, and water from the soil to function.
LearnAndPlay_Lesson_Trees.pdf
This document provides information about Shelby Farms Park, the largest urban park in the United States at 4,500 acres. It discusses the park's trails, lakes, and wildlife. It also introduces the Shelby Farms Park Conservancy nonprofit that manages the park. The rest of the document describes the key parts of trees, the process of photosynthesis, and the differences between deciduous and coniferous trees. Visitors to Shelby Farms Park can see many local tree species on the park's trails.
Plants and Photosynthesis
Plants are important for animal survival. They provide oxygen, food, medicine, fuel and other products. Plants and animals depend on each other - plants provide oxygen and animals provide carbon dioxide. Plants use chloroplasts and photosynthesis to produce their own food. Through photosynthesis, plants take in water and carbon dioxide and produce sugar and oxygen. Plants come in different shapes and sizes and can adapt to their environments.
Photosynthesis and respiration (science)
Plants produce their own food through the process of photosynthesis. Photosynthesis occurs in the leaves of plants, where chlorophyll absorbs light energy from the sun and combines it with water and carbon dioxide taken into the plant to produce oxygen and sugars or starches. The leaves contain stomata, which are openings that take in carbon dioxide and release oxygen. Plants store the food they produce as sugars or starches. All living things need energy from food, and plants provide this energy through photosynthesis.
Photosynthesis (teach)
Plants use photosynthesis to produce their own food. The process requires carbon dioxide, water, and sunlight. Chlorophyll in the leaves captures light energy which is used to convert carbon dioxide and water into glucose, the plant's food. Oxygen is released as a byproduct. Plants take in carbon dioxide through stomata in their leaves and water and minerals through their roots.
LIFE PROCESSES PART-2.pptx
(i) The document discusses the processes of nutrition in living organisms, including autotrophic and heterotrophic nutrition. Autotrophs like plants obtain energy and materials through photosynthesis, using carbon dioxide, water, and sunlight to produce carbohydrates. Heterotrophs depend directly or indirectly on autotrophs for nutrients.
(ii) It describes the process of photosynthesis, in which chloroplasts in plant leaves absorb sunlight and use it to convert carbon dioxide and water into oxygen and carbohydrates like glucose. Chlorophyll is necessary for photosynthesis. Experiments are presented to demonstrate the need for chlorophyll, carbon dioxide, and sunlight in photosynthesis.
(iii) Stomata are pores
Science project
The document describes an experiment to demonstrate that chlorophyll is necessary for photosynthesis. The experiment uses a variegated leaf that has both green parts containing chlorophyll and white parts without chlorophyll. After placing the leaf in sunlight, iodine solution shows the presence of starch only in the green, chlorophyll-containing parts of the leaf, indicating that photosynthesis and starch production occur only where chlorophyll is present.
Science project
The document describes an experiment to demonstrate that chlorophyll is necessary for photosynthesis. The experiment uses a variegated leaf that has both green, chlorophyll-containing parts and white, chlorophyll-lacking parts. When the leaf is placed in sunlight after being destarched, only the green parts turn blue-black with iodine, indicating the presence of starch. This shows that photosynthesis and starch production occur in the chlorophyll-containing areas, but not in the chlorophyll-lacking areas, demonstrating chlorophyll is required for photosynthesis.
Living Things Are All Around Us
The document defines living things and discusses their basic needs and characteristics. It explains that living things like animals and plants need air, water, food/nutrients, and shelter to survive. The document also discusses animal habitats and how some animals can adapt to their environments through traits like camouflage. It notes that animals and humans have five senses and provides examples of senses used for different activities.
Similar to Why do leaves change colors (20)
Why do leaves change colors in the fall? (with voice recording)
Why do leaves change colors in the fall? (with voice recording)
Why do leaves change colors
- 1. Why Do Leaves Change Color in the Fall? Created by: Jessie Kraai
- 2. In the Spring and Summer days are long and nights are short therefore, there is more sun to help trees grow.
- 3. In the Fall, the days become short and the nights become long.
- 4. Chlorophyll is what makes leaves green. It helps the leaf use sunlight to feed itself.
- 5. In the Spring and Summer, chlorophyll is always being made and broken down which keeps the leaf healthy and green.
- 6. As the night becomes longer, chlorophyll is not able to process as quickly and is eventually destroyed.
- 7. When the Chlorophyll is gone, the other parts of the leaf are able to come out and show their color.
- 8. And…
- 9. We get colorful leaves!
- 10. What COLORSdo leaves change?
- 11. Oak Trees turn red or brown. Hickory Trees turn golden bronze. Beech Trees turn light tan.
- 12. Aspen Trees turn golden yellow. Dogwood Trees turn purple/red. Maples turn many different COLORS!
- 13. Fallen leaves have many uses: They break down and become soil with nutrients for forest grounds. They absorb and hold rainfall. Food for soil organisms
- 14. There is to be no worrying about leaves falling off the trees, it is a natural way of life for trees!
- 15. Work Cited Pictures sites in order as seen, all others from clip art: Living Food Junkie (2010, August 31). Retrieved October 11, 2010, from http://livingfoodjunkie.blogspot.com/ Shutterstock Photos (n.d.). Retrieved October 11, 2010, from http://www.shutterstock.com/pic-7013311/stock-photo-beech-leaves-changing-color-in-the-autumn-sunshine.htm National Geographic Society. (2010). National Geographic. Retrieved October 11, 2010, from http://photography.nationalgeographic.com/photography/photo-tips/camera-phone-photos/ Liquid Chlorophyll benefits the body in many ways (2007, January 8). Retrieved October 11, 2010, from ttp://www.thecambodiafund.org/accessory/hello-world Boutin, C. (2009, April 23). Scientists Give a Hand(edness) to the Search for Alien Life. Retrieved October 11, 2010, from http://www.nist.gov/public_affairs/techbeat/tb2009_0421.htm SJI International. (2008, July 28). Chlorophyll and Starch in Leaves. Retrieved October 11, 2010, from http://sjiiscience.blogspot.com/2008/07/chlorophyll-and-starch-in-leaves.html Sheppard, R. (2010, September 10). Fall Colors. Retrieved October 11, 2010, from http://www.natureandphotography.com/ Blanket of Leaves (2008, October 14). Retrieved October 11, 2010, from http://www.thirtysomethingblog.com/2008/10/ Ovata, C. (2010, October 11). Grow Native! Plant Detail. Retrieved October 11, 2010, fromhttp://www.grownative.org/plants/info.asp?id=202 Beech Tree Blog (2009, January 28). Retrieved October 11, 2010, from http://www.lullymoreheritagepark.com/beechtreeblog.htm Peoples Forest. (2010). The Peoples Forest. Retrieved October 11, 2010, from http://www.peoplesforest.co.uk/woodlands.html CT River Coastal Conservation District. (n.d.). Shrubs, Flowers and Tree Seedlings!. Retrieved October 11, 2010, from http://www.conservect.org/ctrivercoastal/PlantSale/tabid/321/Default.aspx The London Landscaping Co. (n.d.). Tree Surgeon Notting Hill W11. Retrieved October 11, 2010, from http://www.gardenernottinghill.co.uk/tree_surgeons_notting_hill_w11.html Information site: US Forest Service. (n.d.). Why Leaves Change Color. Retrieved October 11, 2010, from http://www.na.fs.fed.us/fhp/pubs/leaves/leaves.shtm