All about matter www hoanggiathuco com

All About
Matter

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ISBN 0-15-343820-7
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All About
Mat ter

Matter . . . . . . . . . . . . . . . . .2
Solids . . . . . . . . . . . . . . . . . .3
Water and Other Liquids . .4
Gases Like Air. . . . . . . . . . . .5
Mixtures . . . . . . . . . . . . . . . .6
Measuring Matter . . . . . . . .8
Heating Matter . . . . . . . . .10
Cooling Matter . . . . . . . . .11

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Mat ter

Matter is everything around you.
It can be big or small, hard or soft.
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Solids

Solid matter keeps its shape.
You can sort solids.
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Water and
Other Liquids
float
sink

liquid

Liquid matter flows. It changes shape.
Some solids float in water. Some sink.
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Gases
Like Air

Gas is matter that has no shape.

You can not see most gases.
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Mixtures

You can make a mixture of solids.
The solids do not change.
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salt

soil

You can mix solids with liquids.
Salt dissolves in water. Soil does not.
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Measuring
Mat ter
You can measure the length of a solid.
You can measure the amount of liquid.

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A balance can measure mass.

balance

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Heating
Mat ter

Heat can change water into a gas.
As steam cools, drops of water form.

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Cooling
Mat ter
ice

Water can get so cold it turns into ice.
Ice is solid water.
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Vocabulary

matter, p. 2
solid, p. 3
liquid, p. 4
float, p. 4
sink, p. 4
gas, p. 5
mixture, p. 6
dissolves, p. 7

length, p. 8
mass, p. 9
steam, p. 10

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Think About the Reading

1. What questions do you have
about solids, liquids, and gases?
2. What can you do to find the
answers to your questions?
Hands-On Activity

1. Make a tracing of your hand.
2. Measure each finger. Write the
length of each finger.

School-Home Connection

Tell a family member what you have
learned about matter. Take turns
naming solids and liquids you use at
home.

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