Designing Scientific Investigations Answers

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Choose the correct statements describing the experiment shown on the right.

Group A is the experimental group because it receives the treatment.

Group A is the control group because it does not receive the treatment.

Group B is the control group because it does not receive the treatment.

Group B is the experimental group because it receives the treatment.

The dependent variable in this case is

the color red.

hummingbird feeders.

hummingbird behavior.

bird watching.

Choose the four variables that are most important to control in an experiment about the rate at which bread turns moldy.

humidity

time of day

age of bread

type of bread

shape of bread

height of observer

type of shelf surface

type of storage container

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