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4 cards from this section. Quick, good the night before a test.
What is an independent variable? Give an example.
Think about what you might change in an experiment.
Define a control group.
What group do we compare the experiment group to?
What is the independent variable in an experiment?
Think about what you wish to find out by changing something.
True or False: Control groups receive the experimental treatment.
Consider the purpose of having a control.
Design a comprehensive experiment to measure the effect of different types of soil on the growth of a sunflower. Identify all variable types and explain the significance of the control group.
Think about what factors might affect the plant's growth and how to measure them!
You want to test whether students study better in silence or with background music. Create a hypothesis and break down the independent, dependent, and controlled variables.
What factors can remain unchanged, and which will you actively change?
4 more questions in this section. Enroll free to practise them all.
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