Siti wanted to find out if living things need water to survive. She set up two identical pots of plants, A and B. She placed both in the garden. She watered Pot A daily but did not water Pot B at all. After two weeks, the plant in Pot B died. What was the independent variable (the thing she changed) in this experiment?
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Worked Solution
Step 1: Identify the aim (to see if living things need water).
Step 2: Identify what was different between the two setups (Pot A was watered, Pot B was not).
Step 3: The factor that is changed is the independent variable. Therefore, it is the amount of water.
Correct answer: The amount of water given.
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