Variables for Basic Science

This variable is the one thing that changed on purpose...

• Control

• Independent Variable

Tags

NGSS.MS-PS2-2

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

"Does eating breakfast improve test scores?"

• the grade you got on the test

• what time you get up in the morning

Mrs. A is testing how the amount you water a plant affects its growth. What would be the INDEPENDENT VARIABLE (how she treated the plants different in this experiment)?

• The amount you water each plant.

• The amount the plant grows.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Ms. Schreuder wants to see how different surfaces affect how high a tennis ball can bounce. What is the independent variable that she will make different on purpose?

• the different surfaces

• using the same ball

Tags

NGSS.MS-PS2-2

Match the type of variable with its definition.

• Independent Variable

• what we are observing or measuring

• Dependent Variable

• what we keep the same to make the experiment fair

• Controled Variables

• what we are changing or testing

Tags

NGSS.MS-PS3-4

A scientist is testing which flavor of ice cream melts the fastest. What would be his controlled variables that stay the same for all the groups? (choose 2)

• The flavor of ice cream

• the bowl the ice creams are in

• the place in the room where the ice cream is

Why do scientists do the same experiment multiple times?

• To see if their results are reliable, and then they can form a theory.

• Because their boss makes them.

What if two scientists are doing the same experiment, but they get different results?

• They should give up.

• They should repeat the experiment again and see what happens.

Tags

NGSS.MS-LS2-4

In our pop and mentos experiment, what was the independent variable that we set up to be different about the bottles?

• type of pop

• how high it went