1 chapter 2energy and matter 2.5 states of matter copyright © 2005 by pearson education, inc....
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1
Chapter 2 Energy and Matter
2.5 States of Matter
Copyright © 2005 by Pearson Education, Inc.Publishing as Benjamin Cummings
2
Solids
Solids have • a definite shape.• a definite volume. • particles that are close
together in a fixed arrangement.
• particles that move very slowly.
Copyright © 2005 by Pearson Education, Inc.Publishing as Benjamin Cummings
3
Liquids
Liquids have• an indefinite shape, but
a definite volume.• the same shape as their
container. • particles that are close
together, but mobile.• particles that move
slowly.
4
Gases
Gases have • an indefinite shape. • an indefinite volume.• the same shape and
volume as their container.
• particles that are far apart.
• particles that move very fast.
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Three States of Matter for Water
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Summary of the States of Matter
Solid Liquid Gas
Copyright © 2005 by Pearson Education, Inc.Publishing as Benjamin Cummings
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Identify each as: 1) solid 2) liquid or 3) gas.
___ A. It has a definite volume, but takes the shape of
the container.
__ B. Its particles are moving rapidly.
__ C. It fills the volume of a container.
__ D. It has particles in a fixed arrangement.
__ E. It has particles close together that are mobile.
Learning Check
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Identify each as: 1) solid 2) liquid or 3) gas.
2 A. It has a definite volume, but takes the shape of the container.3 B. Its particles are moving rapidly.
3 C. It fills the volume of a container.
1 D. It has particles in a fixed arrangement.
2 E. It has particles close together that are mobile.
Solution