Experimental Design

Front

The one factor that a scientist changes during an experiment.

Back

Independent Variable

Front

The variable that is measured.

Back

Dependent Variable

Front

Why is it important to have only one independent variable and to control the other variables when performing science experiments?

Back

So you can tell which factor is causing the change in the experiment.

Tags

NGSS.MS-PS2-2

Front

What is the independent variable in Ben's experiment with paper helicopters?

Back

Wing Length

Front

What is the dependent variable in Ben's paper helicopter experiment?

Back

Amount of time it takes the helicopter to hit the floor

Tags

NGSS.MS-PS2-2

Front

What is the dependent variable in an experiment where the mass of a ball affects the distance it rolls off a ramp?

Back

Distance traveled by the ball

Front

What is a hypothesis?

Back

an educated guess about the outcome of an experiment

Front

What two words should be in your hypothesis? Options: I think, If ...then..., It will, No idea

Back

If ...then...

Front

When is a hypothesis written?

Back

before the experiment

Front

What is the effect of putting Pam Cooking Spray on the bottom of a sled?

Back

If I put Pam Cooking Spray on the bottom of my sled, then I will slide faster.

Tags

NGSS.MS-PS2-2