Scientific Method and Variables Review

Front

A possible explanation to a problem that has not yet been tested.

Back

hypothesis

Front

This variable in an experiment is the one being deliberately changed by the scientist.

Back

independent variable

Front

Should experiments be repeated over and over to see if the results are the same each time?

Back

Yes

Front

Type of data that involves numbers obtained by counting or measuring.

Back

quantitative

Front

In a controlled experiment, how many independent variables can be worked with at a time?

Back

one

Front

Measuring the number of times a person breathes after exercise involves ____ data.

Back

quantitative

Front

Identify the dependent variable in an experiment where the mass of a ball affects the distance it rolls off a ramp. Options: height of the ramp, distance traveled by the ball, mass of the ball, weight of the ball

Back

distance traveled by the ball

Front

What type of variable is the fertilizer when experimenting with the growth of a plant using three (of the same type of) plants, two different fertilizers, equal light, and equal water?

Back

Independent

Front

In an experiment on plants with different liquids (water, apple juice, milk), what is the dependent variable?

Back

Plant growth

Front

What step does every scientific experiment begin with?

Back

question/problem