33 Matter：Solid, Liquid, or Gas？

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Matter Solid, Liquid, or Gas? by Becky Manfredini Table of Contents Introduction page 2 Chapter 1 All Kinds of Matter page 4 Chapter 2 Solid, Liquid, or Gas? page 6 Chapter 3 Matter Changes page 12 Conclusion page 14 Glossary/ Index page 15 Comprehension Check page 16

Introduction What is matter? Look around. Everything you see is made of matter. Buildings are made of matter. You are made of matter, too. Matter is anything that takes up space. Language DETECTIVE Clue The word buildings is a noun. The letter s at the end tells you the word is plural. It names more than one building. Can you find two other plural nouns that end in -s on page 3? Everything you see in this picture is made of matter. buildings The leaves on the trees in this forest are made of matter. You can see matter everywhere. A blade of grass is made of matter. Animals are made of matter. All things are made of matter. blade of grass: one piece of grass

CHAPTER 1 All Kinds of Matter You can see how matter looks. You can tell its size and color. Size, shape, and color are properties of matter. How something feels or tastes is a property, too. blocks What shapes are these blocks? What colors are they? Are the ants big or little? ants Is the temperature hot or cold? How can you tell? Temperature is another property of matter. Temperature is how hot or cold something is. Language DETECTIVE Clue: Hot and cold do not mean the same thing. They are opposites. Find four words that are opposites on pages 4 and 5. What Is Mass? Weight is a property of matter, too. How can you tell how heavy or light something is? You can use a balance scale. The side with the heavier object goes down. The side with the lighter object goes up. Which object is heavier? How can you tell? balance scale

CHAPTER 2 Solid, Liquid, or Gas? Matter is a solid, a liquid, or a gas. You use solids, liquids, and gases every day. How can you tell what a solid is? A solid takes up space. A solid has a shape of its own. Your coat and your bike are solids. statue Can a Solid Change Shape? You can change the size and the shape of a solid. You can cut, bend, fold, or tear paper. paper There are many solids in this picture. Find three. What are some properties of the solids you found? boat

Matter can be a liquid. A liquid takes up space. But a liquid does not have its own shape. A liquid takes the shape of the container it is in. container: a glass, jar, or bottle that holds something, such as a liquid Rivers, lakes, and oceans are liquids. The land acts like a container around this river. river land Can You Measure a Liquid? Yes! You can use a measuring cup. A measuring cup tells how much liquid there is. measuring cup You use liquids every day. Here are some shapes and colors of liquids. bottle bowl glass