Question

Create an experiment that tests one of the predictions below: If plants receive fertilizer, then they...

Create an experiment that tests one of the predictions below:

If plants receive fertilizer, then they will grow taller than plants that receive no fertilizer.

Answer the following questions as you design your experiment:

Which prediction did you choose?

What is your dependent variable?

What is your independent variable?

Name two controlled variables.

What is your experimental group?

What is your control group?

Homework Answers

Answer #1

Which prediction did you choose?

A prediction is a statement of the expected results of the experiment based on the hypothesis. We predict that the plants grow taller with fertilizer.

What is your dependent variable?

Dependent variable is what we observe, that is the growth of the plant

What is your independent variable?

Independent variable is what we change in the experiment. Here it is presence or absence of fertilizer

Name two controlled variables.

Same plants

Same fertilizer

What is your experimental group?

Those plants which receive fertilizer

What is your control group?

Those plants which do not receive fertilizer

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