SC.5.N.1.1 The Practice of Science_Variables

Front

What is an independent variable?

Back

An independent variable is the factor that is changed or manipulated in an experiment to test its effects on the dependent variable.

Front

What is a dependent variable?

Back

A dependent variable is the factor that is measured or observed in an experiment, which is affected by changes in the independent variable.

Front

In the cactus study, what was the independent variable?

Back

The amount of humidity.

Front

In the plant growth study, what was the dependent variable?

Back

The average number of leaves per week.

Front

What does it mean to control variables in an experiment?

Back

Controlling variables means keeping all other factors constant except for the independent variable to ensure that any changes in the dependent variable are due to the independent variable.

Front

What is the purpose of a hypothesis in scientific experiments?

Back

A hypothesis is a testable prediction about the relationship between the independent and dependent variables.

Front

What is the significance of a control group in an experiment?

Back

A control group is used as a standard for comparison; it does not receive the experimental treatment.

Front

What does a graph of plant heights typically show?

Back

A graph of plant heights shows the growth patterns of plants over time, allowing for comparisons between different plants.

Front

What is the role of data in scientific experiments?

Back

Data is collected to provide evidence that supports or refutes the hypothesis.

Front

What is an example of a manipulated variable in an experiment?

Back

The amount of fertilizer used in a plant growth experiment.