Classwork #9

Front

What is a dependent variable?

Back

A dependent variable is a variable that depends on or is changed by another variable in an experiment.

Front

What is an independent variable?

Back

An independent variable is a variable that is manipulated or changed in an experiment to observe its effect on the dependent variable.

Front

Which axis on a graph represents the independent variable?

Back

The x-axis represents the independent variable.

Front

Which axis on a graph represents the dependent variable?

Back

The y-axis represents the dependent variable.

Front

In the equation h = the number of hours Dalton babysits and m = the amount of money Dalton earns, which variable is dependent?

Back

m (the amount of money Dalton earns) is the dependent variable.

Front

In an experiment, if you change the amount of sunlight a plant receives, what type of variable is sunlight?

Back

Sunlight is the independent variable.

Front

If the number of bubbles produced in a reaction is measured, what type of variable is this?

Back

The number of bubbles is the dependent variable.

Front

What does it mean if a variable is 'controlled' in an experiment?

Back

A controlled variable is one that is kept constant to ensure that the results are due to the independent variable.

Front

What is the purpose of a hypothesis in an experiment?

Back

A hypothesis is a testable prediction about the relationship between the independent and dependent variables.

Front

What is the relationship between independent and dependent variables?

Back

The independent variable is manipulated to observe its effect on the dependent variable.