Variables

What is the DEPENDENT variable (effect) in this experiment?

"Does eating breakfast improve test scores?"

• eating breakfast or not

• the grade you got on the test

• what time you get up in the morning

• how tasty the breakfast is

You are testing how the amount you water a plant affects its growth. What would be the INDEPENDENT VARIABLE in this experiment.

• They type of pot you put the plants in.

• The amount you water each plant.

• The amount of sunlight the plants get.

• The amount the plant grows.

Tags

NGSS.3-5-ETS1-3

A scientist is testing which flavor of ice cream melts the fastest. What would his controlled variables be? (choose ALL that apply)

• The flavor of ice cream

• the kind of cone the ice creams are in

• the place in the room where the ice cream is

• the size of the scoop

• the time it takes to melt

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Sadie is testing how the age of a seed affects how fast plants grow. Look at the picture to see if you can figure out what makes her experiment unfair. Mark all that apply.

• She used different types of seeds/plants.

• The plants are in different kinds of pots.

• She did not plant very many plants.

• Seed age might not make a difference.

Tags

NGSS.MS-LS1-5

These are the variables that should stay the same. They do not get any changes in order to make for a fair test.

• Dependent Variables

• Controlled variables

• Independent Variables

Tags

NGSS.3-5-ETS1-3

How many independent variables should be changed in an experiment?

• 1

• 2

• as many as you want

• 0

Tags

NGSS.MS-PS2-2

Mrs. Baker wants to see which treat causes her puppy Harley to jump the highest. What is her independent variable?

• Harley

• Type of treat

• How high Harley jumps

• Mrs. Baker

Tags

NGSS.MS-PS2-2

Mrs. Baker wants to see which treat causes her puppy Harley to jump the highest. What is her dependent variable?

• Harley

• Type of treat

• How high Harley jumps

• Mrs. Baker

Mr. Conyers needs your help: He needs to find the constant variables for his experiment. He is trying to determine what shampoo leaves his beard the softest. Which variable would be a constant?

• Type of Shampoo

• Softness of Mr. Conyer's beard

• Amount of Shampoo

• He doesn't need any constant variables

Variable that the SCIENTIST CHANGES or TESTS.

• Control Variable
• Variable
• Dependent Variable
• Independent Variable