PMA 2 Review

Front

What happens to the temperature of an aluminum plate and a plastic plate when both are removed from the freezer?

Back

The plates have the same temperature.

Front

What is the control group in an experiment testing the melting time of ice cream with different toppings?

Back

Vanilla ice cream.

Front

Which element has the most similar properties to boron?

Back

Gallium.

Front

What is the pH of a neutral solution?

Back

7.

Front

What are the parts of an experiment that are kept the same for all groups called?

Back

Constants.

Front

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

Back

A group that does not receive the experimental treatment and is used for comparison.

Front

What is the difference between a variable and a constant in an experiment?

Back

Variables change, while constants remain the same.

Front

What is the purpose of a hypothesis in scientific experiments?

Back

To provide a testable prediction about the outcome of an experiment.

Front

What is the significance of the pH scale in chemistry?

Back

It measures the acidity or basicity of a solution.

Front

What is the definition of a scientific experiment?

Back

A procedure carried out to support, refute, or validate a hypothesis.