Science 5th Grade Checkpoint Review

Front

What happens to the molecules of a solid when heat is added?

Back

The molecules move faster and may change into a liquid.

Front

Why does a pencil appear broken when placed in water?

Back

Light bends when it passes through water.

Front

What is the chemical symbol for the element with atomic number 21?

Back

Sc (Scandium)

Front

What type of energy transformation occurs when riding a bicycle?

Back

Chemical energy in muscles is transformed into mechanical energy in motion.

Front

What do lenses do to light?

Back

Lenses refract light.

Front

What is the definition of refraction?

Back

Refraction is the bending of light as it passes from one medium to another.

Front

What is an example of chemical energy?

Back

Food is an example of chemical energy.

Front

What is the main source of energy for the Earth?

Back

The Sun is the main source of energy for the Earth.

Front

What is the process of changing from a solid to a liquid called?

Back

Melting.

Front

What is the process of changing from a liquid to a gas called?

Back

Evaporation.