Exam Review

Front

What is an independent variable?

Back

An independent variable is the factor that is changed or controlled 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 an experiment, how do you identify the independent variable?

Back

The independent variable is identified as the one that is manipulated or changed by the experimenter.

Front

In Liam's experiment with ice cubes, what was the independent variable?

Back

The amount of salt added to each ice cube.

Front

Why does Earth revolve around the Sun?

Back

Earth revolves around the Sun because the Sun’s mass is much greater than Earth’s, creating a gravitational pull.

Front

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

Back

A control group is used as a standard for comparison to determine the effect of the independent variable.

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What is a hypothesis?

Back

A hypothesis is a testable prediction about the relationship between two or more variables.

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What is the scientific method?

Back

The scientific method is a systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.

Front

What is a complete circuit?

Back

A complete circuit is a closed loop that allows electricity to flow and power devices, such as a light bulb.

Front

What is the role of mass in gravitational attraction?

Back

The greater the mass of an object, the stronger its gravitational pull on other objects.