Review Questions for Science Assessment

Front

What is the main function of the mitochondria in a cell?

Back

To produce energy.

Front

What is an example of a physical change?

Back

Ice melting into water.

Front

Which statement about the electromagnetic spectrum is true?

Back

Radio waves have the longest wavelength.

Front

What process is responsible for the formation of clouds?

Back

Condensation.

Front

How does an increase in the concentration of carbon dioxide in the atmosphere affect Earth's climate?

Back

It causes global warming.

Front

What is the role of chlorophyll in plants?

Back

Chlorophyll absorbs sunlight for photosynthesis.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance, while a chemical change alters its composition.

Front

What is the water cycle?

Back

The continuous movement of water through evaporation, condensation, and precipitation.

Front

What is the function of the cell membrane?

Back

To protect the cell and control what enters and exits.

Front

What is an ecosystem?

Back

A community of living organisms interacting with their environment.