Skip to main content
UploadLanguage (EN)Support
BusinessMobileSocial MediaMarketingTechnologyArt & PhotosCareerDesignEducationPresentations & Public SpeakingGovernment & NonprofitHealthcareInternetLawLeadership & ManagementAutomotiveEngineeringSoftwareRecruiting & HRRetailSalesServicesScienceSmall Business & EntrepreneurshipFoodEnvironmentEconomy & FinanceData & AnalyticsInvestor RelationsSportsSpiritualNews & PoliticsTravelSelf ImprovementReal EstateEntertainment & HumorHealth & MedicineDevices & HardwareLifestyle
Uploaded byMaamAnn6
PPTX, PDF205 views

Understanding Fair Tests and Variables in Scientific Investigations for Grade 6

Explore the concepts of fair tests, control and experimental groups, variables, and scientific investigation methods through practical examples and assessments for Grade 6 science learners.

Education◦
Download to read offline
SCIENCE 6 TERM 1 WEEK 8 DAY 1
Directions: Identify the different techniques in separating mixture. @ @ P R E - L E S S O N
@ @ P R E - L E S S O N
@ @ P R E - L E S S O N
@ @ P R E - L E S S O N
@ @ P R E - L E S S O N
@ @ P R E - L E S S O N
@ @ P R E - L E S S O N
@ @ P R E - L E S S O N
B. “Class, look around you right now. How do you feel about the temperature of the room on this sunny day? @ @ P R E - L E S S O N
Yes, it does feel warm! Do you feel comfortable having the electric fan blowing wind at you? Does it feel less warm because of the wind from the electric fan?” @ @ P R E - L E S S O N
“Now, suppose I turn off this electric fan. How would you feel? Would there be a change in how comfortable you are feeling? Would you still feel comfortable without the electric fan?” @ @ P R E - L E S S O N
“That’s right! If we take away the electric fan, we will not feel as comfortable, especially since the weather is warm today. @ @ P R E - L E S S O N
From this situation alone, we can tell that something as simple as taking away an electric fan can make us feel differently. In fact, taking or adding something can affect a lot of things, which we will learn later in this lesson.” @ @ P R E - L E S S O N
FAIR TEST IN SCIENTIFIC INVESTIGATION AND ACCURATE MEASUREMENT
Recalled what you have learned about the steps in doing simple scientific investigations in Grade 5. What is again a hypothesis? @ @ D I S C U S S I O N
Hypothesis is an educated guess that we make to explain the likely cause of an event or phenomenon, and experiments allow us to confirm if our hypothesis is correct. @ @ D I S C U S S I O N
One of the best ways to do an experiment is to do a fair test, which is a form of investigation where two set-ups are used: a control group and an experimental group. @ @ D I S C U S S I O N
A control group and experimental group are the same in all aspects save for one variable that is changed in an experimental group. What is a variable? @ @ D I S C U S S I O N
A variable is anything in a test that we are trying to measure, usually by comparing it to another variable. @ @ D I S C U S S I O N
A variable can be anything, from the height and weight of a person, their age, or even the person itself. A variable can also be not physical, such as intelligence, preferences, and pain. @ @ D I S C U S S I O N
Can you give an example? A control group is the group that has unchanged variables, which allows us to use it as a “standard comparison” for our test. @ @ D I S C U S S I O N
On the other hand, an experimental group is the group that contains one changed variable, while keeping all other variables the same. @ @ D I S C U S S I O N
Now, let us continue discussing what a fair test is through this story about two river communities. @ @ A S S E S S M E N T
“Once there were two communities that depend on rivers. These were Barangay Karon and Barangay Ugma. @ @ A S S E S S M E N T
Brgy. Karon and Brgy. Ugma had one river each that they used as a source of water for cleaning, bathing, cooking, and for watering plants. @ @ A S S E S S M E N T
Both barangays were almost the same—the physical size of the barangay, their population, demographics, socioeconomic status, you name it—except for how they treated the cleanliness of their river. @ @ A S S E S S M E N T
The people of Brgy. Karon, recognizing the importance of their river, did their best to keep the river as clean as possible. They made sure that anyone who polluted the river was fined and held responsible. @ @ A S S E S S M E N T
On the other hand, the people of Brgy. Ugma was not as caring or vigilant, as they allowed people to throw both biodegradable and nonbiodegradable trash in the river, nor were those people who threw the said trash held responsible for their actions. @ @ A S S E S S M E N T
As the months went by, the river of Brgy. Karon stayed clean due to their efforts, while the river of Brgy. Ugma became polluted. @ @ A S S E S S M E N T
The people of Brgy. Karon lived their lives as usual, while many people of Brgy. Ugma got sick as they continued using the now dirty river water.” @ @ A S S E S S M E N T
The people of Brgy. Karon lived their lives as usual, while many people of Brgy. Ugma got sick as they continued using the now dirty river water.” @ @ A S S E S S M E N T
Directions: Let’s answer the following questions: 1. Did the two barangays use their rivers for the same purpose? Answer: Yes, both barangays used their rivers as sources of water. @ @ E X T E N D E D
2. Which barangay cared for the cleanliness of their river? Answer: Brgy. Karon, as they ensured its cleanliness by being strict with not letting people throw trash into it. @ @ E X T E N D E D
3. Which barangay’s river got dirty as a result? Why? Answer: Brgy. Ugma’s river became dirty due to their lack of care. @ @ E X T E N D E D
4. Which barangay’s river did we use as a basis for determining if the other river was dirty or not dirty? Answer: We used the river of Brgy. Karon as the basis, since it remained clean. @ @ E X T E N D E D
Your answers are right on the mark! Based on your answers, we can safely identify which barangay served as the control group, and which barangay served as the experimental group. What is the Control group? @ @ E X T E N D E D
For the story, Brgy. Karon served as our control group, as they took steps to ensure that the cleanliness of their river is maintained. @ @ E X T E N D E D
On the other hand, Brgy. Ugma served as our experimental group, as they did not care for their river as much as Brgy. Karon did. @ @ E X T E N D E D
Their purpose for using their rivers is the same between the two barangays, so the lack of care by Brgy. Karon can be the only culprit as to why their river became dirty. @ @ E X T E N D E D
By comparing the outcome of their care for their rivers, we can say that Brgy. Karon’s lack of care for their river is the cause of why it became dirty. @ @ E X T E N D E D
SCIENCE 6 TERM 1 WEEK 8 DAY 2
Directions: Observe the illustration and answer the following questions. @ @ P R E - L E S S O N
1. What do you see in the illustration? @ @ P R E - L E S S O N
2. How does the plant on the right look compared to the plant on the left? a. What is the likely reason for how the plant on the right looks like? @ @ P R E - L E S S O N
3. What does the plant on the left have that the plant on the right does not have? a. Does it have anything to do with how the plant on the left looks like? @ @ P R E - L E S S O N
FAIR TEST IN SCIENTIFIC INVESTIGATION AND ACCURATE MEASUREMENT
Recalled what you have learned about the steps in doing simple scientific investigations in Grade 5. What is again a hypothesis? @ @ D I S C U S S I O N
Hypothesis is an educated guess that we make to explain the likely cause of an event or phenomenon, and experiments allow us to confirm if our hypothesis is correct. @ @ D I S C U S S I O N
One of the best ways to do an experiment is to do a fair test, which is a form of investigation where two set-ups are used: a control group and an experimental group. @ @ D I S C U S S I O N
A control group and experimental group are the same in all aspects save for one variable that is changed in an experimental group. What is a variable? @ @ D I S C U S S I O N
A variable is anything in a test that we are trying to measure, usually by comparing it to another variable. @ @ D I S C U S S I O N
A variable can be anything, from the height and weight of a person, their age, or even the person itself. A variable can also be not physical, such as intelligence, preferences, and pain. @ @ D I S C U S S I O N
Can you give an example? A control group is the group that has unchanged variables, which allows us to use it as a “standard comparison” for our test. @ @ D I S C U S S I O N
On the other hand, an experimental group is the group that contains one changed variable, while keeping all other variables the same. @ @ D I S C U S S I O N
Directions: Identify whether the given test in each item is fair or not based on the information given. Write “FAIR” if the test is a fair test, or “NOT FAIR” if it is not. Afterwards, write a short explanation as to why the given test is fair or not. @ @ A S S E S S M E N T
1. Comparing the taste of a salted chicken egg versus the taste of an unsalted duck egg. Fair or not fair? _________________________________ For what reason? _________________________________ @ @ A S S E S S M E N T
2. Measuring the weight gain of a boy who ate one cup of rice versus a girl who ate one cup of rice and seeing which one gained more weight. Fair or not fair? _________________________________ For what reason? _________________________________ @ @ A S S E S S M E N T
3. The effect of using compost versus using synthetic fertilizer on the crop yield of sweet corn plants. Fair or not fair? _________________________________ For what reason? _________________________________ @ @ A S S E S S M E N T
4. Using pineapple juice marinade versus cane vinegar marinade for softening tough cuts and tender cuts of meat. Fair or not fair? _________________________________ For what reason? _________________________________ @ @ A S S E S S M E N T
5. Comparing the number of honeybees that approached white roses versus the number of honeybees that approached red roses. Fair or not fair? _________________________________ For what reason? _________________________________ @ @ A S S E S S M E N T
Directions: Answer the following questions: 1. How can identifying fair and not fair tests help you understand the importance of controlling variables in an experiment? @ @ E X T E N D E D
2. What do you think will happen to the results of an experiment if the variables are not kept the same in both groups? @ @ E X T E N D E D
3. In real life, why is it important to make sure that experiments are fair before making conclusions or decisions? @ @ E X T E N D E D
SCIENCE 6 TERM 1 WEEK 8 DAY 3
Directions: Read the situation carefully about the plant experiment. Identify the important parts of a fair test, including the hypothesis, control group, experimental group, and variable. Then, answer the questions that follow based on your understanding. @ @ P R E - L E S S O N
Two groups of Grade 6 students wanted to find out what helps plants grow faster. They made a hypothesis: Plants grow taller when given fertilizer. @ @ P R E - L E S S O N
They prepared two sets of plants that were the same type, size, and planted in the same kind of soil and pots. Both sets were placed in the same area and received the same amount of sunlight and water every day. @ @ P R E - L E S S O N
The first set of plants (Set A) was not given any fertilizer. The second set (Set B) was given fertilizer once a week. @ @ P R E - L E S S O N
After several weeks, the students observed that the plants in Set B grew taller and healthier than those in Set A. @ @ P R E - L E S S O N
Because only one variable (fertilizer) was changed while everything else stayed the same, the students were able to conduct a fair test. @ @ P R E - L E S S O N
Guide Questions: 1. What was the hypothesis of the students? 2. Which set is the control group and which is the experimental group? @ @ P R E - L E S S O N
3. What is the variable that was changed in the experiment? 4. Why is it important to keep all other variables the same in a fair test? @ @ P R E - L E S S O N
FAIR TEST IN SCIENTIFIC INVESTIGATION AND ACCURATE MEASUREMENT
Fair tests are a good way to check if our independent variable will affect our dependent variable. @ @ D I S C U S S I O N
However, just doing a fair test once is not reliable, so we must make sure that each time we do a test, we get similar results each time we do it. @ @ D I S C U S S I O N
Now class, we will have a story of two boys who want to wake up early in the morning. Are you all ready to listen? Here we go! @ @ D I S C U S S I O N
“A pair of boys named Juan and Niño were the best of friends. They played video games together, so much so that they stayed up late at night just to keep playing. @ @ D I S C U S S I O N
This took a toll on their ability to wake up early, making both Juan and Niño oversleep and come to school late. To help make them sleep earlier, their parents gave them a curfew of playing up to 9:00 PM only. @ @ D I S C U S S I O N
Neither Juan nor Niño were immediately good at waking up early, so they had to use tools to help them rise early in the morning. @ @ D I S C U S S I O N
Juan was given an alarm clock by his brother to use, whereas Niño, being the son of a poultry farmer, had to rely on his father’s pet rooster to wake him up. Both wanted to be up by 5:00 AM, which was when dawn broke at the time. @ @ D I S C U S S I O N
As such, Juan set his alarm to 5:00 AM. Both Juan and Niño can wake up easily to the sounds of the alarm clock and rooster, respectively. On the first day, Juan was able to wake up at exactly 5:00 AM thanks to his alarm clock. @ @ D I S C U S S I O N
Niño woke up a little earlier, at 4:40 AM, since that was the time, the rooster crowed. This gave Niño more time to prepare in the morning than Juan. @ @ D I S C U S S I O N
On the second day, Juan woke up at 5:00 AM yet again, while Niño woke up a little later, at 5:25 AM, due to the rooster having crowed late. @ @ D I S C U S S I O N
On the third day, Juan woke up at the exact same time, 5:00 AM, while Niño woke up at 5:00 AM, as the rooster was able to crow at the exact time, he needed it to. @ @ D I S C U S S I O N
Both Juan and Niño, despite the difference in tools, were able to go to school early since then.” @ @ D I S C U S S I O N
Answer the following questions: 1. Who between Juan and Niño woke up at the same time each morning? @ @ D I S C U S S I O N
2. Which between the alarm clock and rooster was consistently going off at 5:00 AM? @ @ D I S C U S S I O N
3. Which is more reliable if you want to wake up at exactly 5:00 AM each time? The alarm clock or the rooster? @ @ D I S C U S S I O N
As you can tell from the story, the alarm clock is more reliable than the rooster, as the alarm clock consistently sounds off at 5:00 AM each day. @ @ D I S C U S S I O N
In a fair test, we must also seek this same reliability: our results must always be similar, if not the same as the results of the original test, provided the exact same conditions were used. @ @ D I S C U S S I O N
Now, what would happen if we cannot replicate the results of a fair test despite using the exact same things and conditions, can we consider the test replicable? @ @ D I S C U S S I O N
No, we cannot, as it would mean that the outcome of the original test was purely due to chance, and that the things that were used for the original test had little to do with the outcome of the test. @ @ D I S C U S S I O N
Directions: A scenario of a fair test is given on each item. Identify which variable is INDEPENDENT, which variable is DEPENDENT, and which variable is the CONTROL for each fair test. Write your answers on the spaces provided. @ @ A S S E S S M E N T
1. Using butter versus using margarine in a homemade pancake recipe and seeing which one is tastier. INDEPENDENT:_____________________ DEPENDENT:_______________________ CONTROL: _______________________ @ @ A S S E S S M E N T
2. The growth rate of potted gumamela (hibiscus) plants in loam soil when under full sun versus under partial sun. INDEPENDENT:_____________________ DEPENDENT:_______________________ CONTROL: _______________________ @ @ A S S E S S M E N T
3. Comparing the color of a pitcher of juice drink when dissolving the entire sachet versus only half of the sachet in one liter of water. INDEPENDENT:_____________________ DEPENDENT:_______________________ CONTROL: _______________________ @ @ A S S E S S M E N T
4. Testing the audio quality of expensive speakers versus cheap speakers when playing disco music. INDEPENDENT:_____________________ DEPENDENT:_______________________ CONTROL: _______________________ @ @ A S S E S S M E N T
5. Drinking one cup of warm milk versus one cup of tea to see which drink can help you sleep better at night. INDEPENDENT:_____________________ DEPENDENT:_______________________ CONTROL: _______________________ @ @ A S S E S S M E N T
Directions: Answer the following questions: 1. What is a fair test? @ @ E X T E N D E D