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 (a)   variable.

How much the flowers grow would be the (a)   variable.

The type of flower, the amount of light and the type of soil are the (a)   .

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