Variables

This type of variable is the thing that changes in an experiment.

• Independent

• Dependent

• Constant

This type of variable is the result or what is being measured in an experiment.

• Independent

• Dependent

• Constant

This type of variable is kept the same throughout the experiment.

• Independent

• Dependent

• Constant

At the eye doctor, a patient will close their left eye and read a poster on the wall. Then, the doctor will have them take a few steps back and repeat the process. What is an independent variable in this test?

• The distance from the poster

• The eye that is being closed

• The poster that is being read

At the eye doctor, a patient will close their left eye and read a poster on the wall. Then, the doctor will have them take a few steps back and repeat the process. Identify a constant variable in this test?

1. A farmer is wanting to see how the amount of fertilizer affects the number of earthworms in the soil. What is a dependent variable in this test?

• How much fertilizer is used

• The amount of earthworms in the soil

• The type of fertilizer being used

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

1. A farmer is wanting to see how the amount of fertilizer affects the number of earthworms in the soil. What is a dependent variable in this test? Identify a constant in this scenario.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

A baker is testing how temperature affects the speed of baking a cake. She will test three temperatures and see which temperature causes the cake to bake the fastest. What is a dependent variable in this experiment?

• The speed of the cake baking

• Temperature of the oven

• The ingredients of the cake

A baker is testing how temperature affects the speed of baking a cake. She will test three temperatures and see which temperature causes the cake to bake the fastest. Identify a constant in this scenario.

A chef is testing how salt affects the taste of his soup. He makes two batches, one with 2 tablespoons of salt and the other with 3 tablespoons. He tastes both batches and determines less salt is better. What is a the independent variable in this test?

• How the soup tastes

• The amount of salt used in the soup

• The chef

Tags

NGSS.MS-PS1-2