1. A hypothesis is a guess - like flipping a coin.

A. False

B. True



2. Identify all the constants needed for this experiment.

A 10 mL of fertilizer

B how often plans are watered

C amount of light

D height of plants

E 200 mL of water


3. What is the variable called that you are changing?

A. Control

B. Dependent

C. Independent


4. In a controlled experiment,

A
a control group is compared to an experimental group.

B
a variable is not needed

C
all factors should be the same.

D
there are only 2 variables.