Variables

On a graph, which axis shows the independent variable?

• x-axis
• y-axis
• neither
• it changes

On a graph, which axis shows the dependent variable?

• x-axis
• y-axis
• neither
• it changes

Jana is participating in a walkathon to raise money for local literacy programs. The amount of money Sarah will raise depends on the distance she walks.

m = the amount of money Sarah will raise

d = the distance Sarah walks

Which of the variables is dependent?

• m

• d

What is the independent variable?

• Things you keep the same- they do not change

• What you observe or measure

• What you decide to change in an experiment

What is the dependent variable?

• Things you keep the same- they do not change

• What you observe or measure

• What you decide to change in an experiment

The amount of water we would give to the flowers would be the _________________ variable.

How much the flowers grow would be the __________________ variable.

The type of flower, the amount of light and the type of soil are the ______________.

An investigation was done to see if keeping the lights on for different amount of time each day affected the number of eggs the chicken lay.

What is the DEPENDENT VARIABLE?

• The number of eggs the chicken will lay

• the amount of time the lights are on

• The number of eggs you can eat in a day

• the brightness of the lights

Spending time with animals reduces stress.

Independent variable: ______________

• stress level

• the amount of time spent with animals

• the number of animals you own

• how much money you make