Variables

Front

What is the INDEPENDENT VARIABLE when testing how the amount you water a plant affects its growth?

Back

The amount you water each plant.

Front

What is the dependent variable when testing the time it takes for objects of different sizes to reach the ground after being dropped from 30 feet?

Back

The time it takes for each object to hit the ground.

Front

Why do we use graphs in science?

Back

All of these are correct: to record and display data, to show trends in data, to predict what will happen if we extend the experiment.

Front

A scientist is studying if height and arm length are connected. What can the scientist conclude from this graph?

Back

Height does affect arm length for most people.

Front

Did Ms. A's experiment fail when the bead did not change color with her mood?

Back

No, it was not a failure because she found out that mood does not affect the bead's color.

Front

Why do scientists do the same experiment multiple times?

Back

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

Front

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

Back

They should repeat the experiment again and see what happens.