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Scientific Variables
Scientific Variables practice
Question | Answer |
---|---|
John has pea plants. He is going to test how the amount of water he gives them affects their growth. What is one constant? | Type of soil. |
John is testing the amount of sunlight his pea plants need to grow. What would the independent variable be? | Amount of sunlight. |
John is testing whether expensive fertilizer helps his hydrangea plants grow more than cheap fertilizer. What is the dependent variable? | Plant growth. |
A new painkiller drug is being tested on humans. What group is the control group? | The group that is taking placebos. |
A new painkiller drug is being tested on humans. What group is the experimental group? | The group that is taking the drugs. |