MU#9 -States of Matter/Phase Changes

Front

What is matter?

Back

Matter is anything that has mass and takes up space.

Front

What are the three main states of matter?

Back

The three main states of matter are solid, liquid, and gas.

Front

What is a phase change?

Back

A phase change is a transition of matter from one state to another, such as melting, freezing, or boiling.

Front

Which state of matter has the least energy?

Back

Solid has the least energy among the three main states of matter.

Front

What happens to particles in a solid?

Back

In a solid, particles are closely packed together and vibrate in place.

Front

What happens to particles in a liquid?

Back

In a liquid, particles are close together but can move past each other, allowing liquids to flow.

Front

What happens to particles in a gas?

Back

In a gas, particles are far apart and move freely, filling the space available.

Front

What is plasma?

Back

Plasma is a state of matter where gas is energized until atomic electrons are no longer associated with the nucleus.

Front

What occurs during melting?

Back

During melting, a solid gains energy and changes into a liquid.

Front

What occurs during freezing?

Back

During freezing, a liquid loses energy and changes into a solid.