During what years did the Tadpoles experience the biggest increase in population?

What is the independent variable in his investigation?

During what time frame did the Tadpoles experience a slow decline in population?

Approximately how many Tadpoles were in the pond in 1993?

The _____ controls what enters and leaves the cell.

What is the main function of the cell wall?

The one factor that can be changed in a controlled experiment; the factor being tested.

• Control Group

• Problem Statement/Testable Question

• Constant

• Independent Variable

• Dependent Variable

A factor that remains fixed or the same during an investigation.

• Constant

• Independent Variable

• Dependent Variable

• Control Group

• Problem Statement/Testable Question

The group not receiving the factor being tested.

• Dependent Variable

• Constant

• Control Group

• Problem Statement/Testable Question

• Independent Variable

The group I will use to compare my results to.

• Control Group

• Independent Variable

• Dependent Variable

• Constant

• Problem Statement/Testable Question