Name: ______

**Phases of Matter Study Guide

Read the following passages about the three phases of matter then fill in the blanks.

PHASES OF MATTER

There are three basic states of matter: solid, liquid, and gas. Everything on Earth is made up of microscopic particles that can be found in these three phases.

1.  The three states of matter are ______, ______and ______.

SOLID

A solid is anything that holds a particular size and shape. An apple, a block of wood, and a penny are all solids.

2.  Solids hold a their size and ______.

3.  Three examples of a solid are: ______, ______and ______.

The particles in a solid are tightly packed and don't make a lot of movements. There is not much free space in between the particles, so there is very little room for the particles to move.

4.  The particles of a solid are packed very ______and there is very little room for the particles to ______.

LIQUID

A liquid is anything that has size or volume, but does not have a shape. Liquids must be contained in a cup, bottle, or container in order to have a shape. Milk, water, and juice are liquids.

5.  Unlike solids, liquids do not have a ______, unless in a container.

6.  Three examples of liquids are: ______, ______and ______.

Liquid particles are not as close together as particles in a solid, and move around and past each other much more freely. They have no regular shape or arrangement and move freely.

7.  Liquid particles have no shape and can move ______.

GAS

Gases are hard to identify because they have no color or shape. Take a deep breath and feel your lungs get bigger. Your lungs are filling up with air, and air is a combination of many gases. It has no shape or size.

8.  Gasses have no ______or ______.

9.  Air is a combination of many ______.

The particles in a gas move freely at high speeds. There is a lot of free space in between the particles.

10. Particles of gas move ______at high ______.

11.  There is a lot of ______between the particles of gas.