Variables in Experiments
Biology ⇒ Scientific Inquiry and Experimental Design in Biology
Variables in Experiments starts at 6 and continues till grade 12.
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See sample questions for grade 7
Describe the difference between an independent variable and a dependent variable.
Explain what would happen if you changed more than one variable at a time in an experiment.
Explain why it is important to change only one variable at a time in an experiment.
If you are testing how temperature affects the rate of a chemical reaction, what is the independent variable?
In an experiment to see if fertilizer affects plant height, what is the controlled variable?
In an experiment to test the effect of different amounts of sugar on yeast growth, what is the dependent variable?
In an experiment to test the effect of different types of music on plant growth, what is the independent variable?
In an experiment to test the effect of sunlight on plant growth, what is the independent variable?
In an experiment where you test how the amount of water affects seed germination, what is the dependent variable?
In an experiment, what is the role of the dependent variable?
List two examples of controlled variables in an experiment testing the effect of light on plant growth.
What is a variable in a scientific experiment?
What is the purpose of having controlled variables in an experiment?
Why is it important to identify variables before starting an experiment?
