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Scientific Variables

Scientific Variables practice

QuestionAnswer
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.
Created by: gabrielgreiling