Unit 4 Test Review

Front

What is the difference between a theory and a law in science?

Back

A theory tries to explain why things happen, while a law just states what happens.

Front

What type of energy is used when an object is in motion?

Back

Mechanical energy.

Front

What do we call the part of an experiment that is not changed and is used for comparison?

Back

Control group.

Front

In an experiment, what do we call the variable that is changed or controlled?

Back

Independent variable.

Front

What is a scientific observation?

Back

A statement based on what can be seen or measured, such as 'The potato is brown in color.'

Front

What is a hypothesis?

Back

A testable prediction about the outcome of an experiment.

Front

What is a variable in an experiment?

Back

Any factor that can change or be changed.

Front

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

Back

To provide a standard for comparison against the experimental group.

Front

What is the definition of a scientific law?

Back

A statement that describes a consistent and universal relationship in nature.

Front

What is the role of evidence in scientific investigations?

Back

To support or refute a hypothesis based on observations and data.