Why Does Matter Matter Worksheet With Answer Key (Page 2 of 4) in pdf

Why Does Matter Matter Worksheet With Answer Key Page 2

Gases do not have definite shape or volume. Like liquids, gasses

will take the shape of their containers. If a gas is not in a container, it will

spread out indefinitely. This is because the atoms in a gas are spaced

farther apart than in a solid or a liquid. And being spread out like this

allows them to move around freely. Think about the air you breathe

everyday. That air is spread across the empty space around the earth.

You’ve probably also noticed that you usually cannot see the air. This is

another property of gases. Even though we cannot see them, you

come in contact with them everyday. There’s air in the tires of your

family car and your bicycle. There are many different types of gas in the

earth's atmosphere, such as oxygen, carbon dioxide, nitrogen, water

vapor, and helium.

When trying to remember the three states of matter, think

about water. If it freezes into a solid, it becomes ice. Its atoms are

packed together keeping its shape. Of course, we know water can

You can see three different

also be a liquid. It flows in rivers or it can be poured from a glass.

states of matter in this

picture. The pot is made of

When water evaporates it becomes water vapor, a type of gas in

solid matter. The water

the air. Try a little experiment of your own by placing an ice cube in

inside the pot is liquid.

a covered glass or container. You will be able to observe the ice first

When the liquid is heated it

becomes water vapor,

in its solid form and then watch as it melts into a liquid to become

which is a gas.

water. Eventually the water will turn to water vapor and your glass or

container will be filled with this gas.

Matter is everywhere! Can

you find a solid, a liquid,

and a gas around you right

now?

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Why Does Matter Matter Worksheet With Answer Key Page 2