Matter exists in three states: solids, liquids, and gases. Solids have a definite shape and volume, while liquids take the shape of their container but have a definite volume. Gases fill their container completely and do not have a definite shape or volume. The particles that make up solids, liquids and gases, called molecules, behave differently in each state - in solids they are close together and don't move much, in liquids they are loosely tied and flow freely, and in gases they are far apart and move freely.

1. Matter
Solids, Liquids, and
Gases
START END

2. Matter
• Matter is anything that takes up space.
• Everything on earth is matter.
• Matter exists in three states:
• Solids
• Liquids
• Gases

3. Solids
• A solid does not change size or shape
when it is moved.
• You can measure the shape and the
mass of a solid.
• Examples: book, apple, shoes
• Can you think of anymore?

4. Liquids
• Liquids do not have their own shape.
• They take the shape of its container.
• Examples: water, juice, milk
• How do liquids look and feel?

5. Gases
• Gas is matter that is all around you and
fills many kinds of things.
• For example, bubbles, balloons, and balls
are filled with gas.
• Air is also a gas.
• Gas takes the shape and size of the
container
• Can you think of another example?

6. Molecules
• Solids, Liquids, and Gases are made up
of tiny particles called molecules.
• As a class we can act as if we are the
molecules that make up solids, liquids,
and gases!
• Everyone stand up and get ready to
have some fun!

7. Solids
• Get as close as possible to one
another and hold hands.
• The molecules in a solid are very close
together and do not move very much.

8. Liquids
• To act as a liquid we still hold hands,
but we spread out some and move
together.
• The molecules of a liquid are loosely
tied together and flow freely.

9. Gases
• Everyone let go of your neighbor’s
hands and spread out.
• Walk around the room and slightly
bump into one another, like bumper
cars.
• The molecules in a gas have a lot of
space between them and move freely.

10. Gases
• Everyone let go of your neighbor’s
hands and spread out.
• Walk around the room and slightly
bump into one another, like bumper
cars.
• The molecules in a gas have a lot of
space between them and move freely.