Independent & Dependent Variables

Front

In an experiment to determine how light affects the growth of small zinnia plants, with one plant in full sunlight, one in a shaded area, and one in an unlit closet, what is the independent variable?

Back

the amount of light

Front

What is the hypothesis of the experiment on how light affects the growth of small zinnia plants?

Back

Zinnia plants in direct sunlight grow taller than zinnia plants in little or no sunlight.

Front

True or False - Experiments should have many independent variables.

Back

FALSE

Front

True or False - In order to avoid confusing or conflicting results, an experiment should not be repeated.

Back

FALSE

Front

What is the independent variable in the zinnia experiment where one plant is placed in full sunlight, the second in a shaded area, and the third in an unlit closet?

Back

The amount of sunlight

Front

What is it called when a scientist repeats an experiment several times in the exact same way?

Back

Repeated trials

Front

What observations might you make about a nearby cat?

Back

The cat is black and white.

Front

What can you infer about the cat you observed eating?

Back

The cat is hungry.

Front

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

Back

independent variable

Front

In a controlled experiment, how many variables can be worked with at a time? Options: one, none, two or more, how ever many makes sense.

Back

one