Mid-year LEAP review 7th grade

Front

What happens to the particles in a substance when they are speeding up?

Back

The particles gain energy and move faster, which can lead to a change in state, such as melting.

Front

How do the digestive and circulatory systems work together?

Back

The digestive system breaks down food, and the circulatory system transports nutrients to cells.

Front

Why does the phase change graph flatten out during melting?

Back

The temperature remains constant while energy is used to break the molecular bonds.

Front

What is the process called that turns a gas into a liquid?

Back

Condensation.

Front

What occurs when molecules reach absolute zero?

Back

The molecules stop moving.

Front

What is melting?

Back

The process where a solid turns into a liquid as it gains heat.

Front

What is freezing?

Back

The process where a liquid turns into a solid as it loses heat.

Front

What is evaporation?

Back

The process where a liquid turns into a gas, usually by gaining heat.

Front

What is condensation?

Back

The process where a gas turns into a liquid, usually by losing heat.

Front

What is the relationship between temperature and particle movement?

Back

As temperature increases, particle movement increases; as temperature decreases, particle movement decreases.