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Let’s Practice… 1. What is the independent variable? 2. What is the dependent variable?

Let’s Practice… 1. What is the independent variable? 2. What is the dependent variable?. There are three parts in every experiment:. The Independent variable The Dependent variable The Controlled variable.

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Let’s Practice… 1. What is the independent variable? 2. What is the dependent variable?

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  1. Let’s Practice…1. What is the independent variable?2. What is the dependent variable?

  2. There are three parts in every experiment: • The Independent variable • The Dependent variable • The Controlled variable

  3. Controlled variables are the things you want to keep the same between the two groups in your experiment For example: Ms. West pours salt into two glasses of water. One glass of water is hot and one glass of water is cold. She sees how long it takes for the salt to dissolve. What are some of the controlled variables?

  4. Your turn! Our experiment: We want to find out if giving mice caffeine helps them go through mazes faster. We take 20 mice that were living in the same cage, and give 10 of the mice caffeine. Then we let all the mice try to get through the maze and time how long they take.

  5. What is our prediction? What is our hypothesis?

  6. What is our independent variable? What is our dependent variable? What is a controlled variable?

  7. What is our independent variable? Caffeine What is our dependent variable? How fast the mice do the maze What is a controlled variable? Food, water, how hard the maze is

  8. Let’s Practice…Jabrea wants to do an experiment to see if Clorox cleaner kills germs. She cleans half of her kitchen counter with Clorox and leaves the other half alone. She then swabs and measures the bacterial growth with ager plates.

  9. a. What is the independent variable?b. What is the dependent variable?C. What are the control variables?

  10. a. What is the independent variable?-The Clorox cleanerb. What is the dependent variable?-The amount of bacteria that growC. What are the control variables?-How many germs the counter had before the experiment, what the counter is used for.

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