1. Some people keep skunks for pets. How do you think they do this? You know that skunks can smell very bad. If they are frightened they give off a liquid which has a strong smell. Skunks have little bags which hold this smelly liquid and these can be cut out by a doctor. Then the skunk can make a fine pet, like a cat or a dog. Some people keep skunks for _______________.

2. Some people keep skunks for pets. How do you think they do this? You know that skunks can smell very bad. If they are frightened they give off a liquid which has a strong smell. Skunks have little bags which hold this smelly liquid and these can be cut out by a doctor. Then the skunk can make a fine pet, like a cat or a dog. Skunks give off a strong smell when they are _____________.

3. Some people keep skunks for pets. How do you think they do this? You know that skunks can smell very bad. If they are frightened they give off a liquid which has a strong smell. Skunks have little bags which hold this smelly liquid and these can be cut out by a doctor. Then the skunk can make a fine pet, like a cat or a dog. The skunk can make a fine _____________.

4. Some people keep skunks for pets. How do you think they do this? You know that skunks can smell very bad. If they are frightened they give off a liquid which has a strong smell. Skunks have little bags which hold this smelly liquid and these can be cut out by a doctor. Then the skunk can make a fine pet, like a cat or a dog. This story could also be called __________.

5. Porcelain is one of the three kinds of pottery. It is usually coated with a hard, shiny material called glaze. When porcelain is broken it has a glassy look, when it is tapped there is a clear ringing sound, and it is not harmed by fire or water. It is often called china because that is the country where it was invented. The two other kinds of pottery are stoneware and earthenware. They are less glossy and more heavy than porcelain. Also they do not let light shine through as porcelain does. Porcelain is one of _______________.

6. Porcelain is one of the three kinds of pottery. It is usually coated with a hard, shiny material called glaze. When porcelain is broken it has a glassy look, when it is tapped there is a clear ringing sound, and it is not harmed by fire or water. It is often called china because that is the country where it was invented. The two other kinds of pottery are stoneware and earthenware. They are less glossy and more heavy than porcelain. Also they do not let light shine through as porcelain does. The coating on porcelain is _______________.

7. Porcelain is one of the three kinds of pottery. It is usually coated with a hard, shiny material called glaze. When porcelain is broken it has a glassy look, when it is tapped there is a clear ringing sound, and it is not harmed by fire or water. It is often called china because that is the country where it was invented. The two other kinds of pottery are stoneware and earthenware. They are less glossy and more heavy than porcelain. Also they do not let light shine through as porcelain does. Two other kinds of pottery _______________.

8. Porcelain is one of the three kinds of pottery. It is usually coated with a hard, shiny material called glaze. When porcelain is broken it has a glassy look, when it is tapped there is a clear ringing sound, and it is not harmed by fire or water. It is often called china because that is the country where it was invented. The two other kinds of pottery are stoneware and earthenware. They are less glossy and more heavy than porcelain. Also they do not let light shine through as porcelain does. This story could also be called ___________.

9. One of the classes of animals with backbones includes snakes, turtles, lizards, alligators, and crocodiles. They are called reptiles. Some of these animals are found in or near water, but they always breathe by means of lungs. They do not breathe by means of gills at any stage of their life. They hatch from eggs laid on dry land. There are two false ideas that most people have about reptiles. Many people say they are slimy. This is not true. Their skins are covered by scales or bony plates. Also, many people say reptiles are dangerous. Most are completely harmless, and some are very helpful. Reptiles breathe __________________.

10. One of the classes of animals with backbones includes snakes, turtles, lizards, alligators, and crocodiles. They are called reptiles. Some of these animals are found in or near water, but they always breathe by means of lungs. They do not breathe by means of gills at any stage of their life. They hatch from eggs laid on dry land. There are two false ideas that most people have about reptiles. Many people say they are slimy. This is not true. Their skins are covered by scales or bony plates. Also, many people say reptiles are dangerous. Most are completely harmless, and some are very helpful. They are ____________.

11. One of the classes of animals with backbones includes snakes, turtles, lizards, alligators, and crocodiles. They are called reptiles. Some of these animals are found in or near water, but they always breathe by means of lungs. They do not breathe by means of gills at any stage of their life. They hatch from eggs laid on dry land. There are two false ideas that most people have about reptiles. Many people say they are slimy. This is not true. Their skins are covered by scales or bony plates. Also, many people say reptiles are dangerous. Most are completely harmless, and some are very helpful. Reptiles are _____________.

12. One of the classes of animals with backbones includes snakes, turtles, lizards, alligators, and crocodiles. They are called reptiles. Some of these animals are found in or near water, but they always breathe by means of lungs. They do not breathe by means of gills at any stage of their life. They hatch from eggs laid on dry land. There are two false ideas that most people have about reptiles. Many people say they are slimy. This is not true. Their skins are covered by scales or bony plates. Also, many people say reptiles are dangerous. Most are completely harmless, and some are very helpful. This story could also be called ______________.

13. Just like all other stars, the sun is giving off tremendous amounts of energy. Can stars keep this up forever? There is no complete agreement among scientists. Some scientists believe that matter may be created out of energy from outer space. Then there would be an endless cycle of matter-to-energy and back again to matter. Other scientists believe that stars give out energy until it's all gone. If so, the sun is in the process of being "used up." Whichever the case, two things are likely: first, the sun will grow cooler and cooler and with, it, our earth, and second, it will take so man millions of years that it is of no concern in the forseeable future. The sun is ________________.

14. Just like all other stars, the sun is giving off tremendous amounts of energy. Can stars keep this up forever? There is no complete agreement among scientists. Some scientists believe that matter may be created out of energy from outer space. Then there would be an endless cycle of matter-to-energy and back again to matter. Other scientists believe that stars give out energy until it's all gone. If so, the sun is in the process of being "used up." Whichever the case, two things are likely: first, the sun will grow cooler and cooler and with, it, our earth, and second, it will take so man millions of years that it is of no concern in the forseeable future. The sun may someday _________________.

15. Just like all other stars, the sun is giving off tremendous amounts of energy. Can stars keep this up forever? There is no complete agreement among scientists. Some scientists believe that matter may be created out of energy from outer space. Then there would be an endless cycle of matter-to-energy and back again to matter. Other scientists believe that stars give out energy until it's all gone. If so, the sun is in the process of being "used up." Whichever the case, two things are likely: first, the sun will grow cooler and cooler and with, it, our earth, and second, it will take so man millions of years that it is of no concern in the forseeable future. If the sun grows cooler and cooler ___________.

16. Just like all other stars, the sun is giving off tremendous amounts of energy. Can stars keep this up forever? There is no complete agreement among scientists. Some scientists believe that matter may be created out of energy from outer space. Then there would be an endless cycle of matter-to-energy and back again to matter. Other scientists believe that stars give out energy until it's all gone. If so, the sun is in the process of being "used up." Whichever the case, two things are likely: first, the sun will grow cooler and cooler and with, it, our earth, and second, it will take so man millions of years that it is of no concern in the forseeable future. This story could also be called ____________.

17. The name Atlas is often given to a strong man in a circus. Atlas was a Greek God who took care of the pillars that held heaven and earth apart. Later people drew pictures of statues of Atlas holding the world on his back. (The Greeks didn't know the earth is shaped like a ball.) In the 16th century, a mapmaker used a picture of Atlas holding up the globe. Since that time, a book of maps has been called an Atlas. The name Atlas is often given to ________________.

18. The name Atlas is often given to a strong man in a circus. Atlas was a Greek God who took care of the pillars that held heaven and earth apart. Later people drew pictures of statues of Atlas holding the world on his back. (The Greeks didn't know the earth is shaped like a ball.) In the 16th century, a mapmaker used a picture of Atlas holding up the globe. Since that time, a book of maps has been called an Atlas. At first, Atlas was thought of as taking care of pillars that ________________.

19. The name Atlas is often given to a strong man in a circus. Atlas was a Greek God who took care of the pillars that held heaven and earth apart. Later people drew pictures of statues of Atlas holding the world on his back. (The Greeks didn't know the earth is shaped like a ball.) In the 16th century, a mapmaker used a picture of Atlas holding up the globe. Since that time, a book of maps has been called an Atlas. We use the name Atlas for _____________.

20. The name Atlas is often given to a strong man in a circus. Atlas was a Greek God who took care of the pillars that held heaven and earth apart. Later people drew pictures of statues of Atlas holding the world on his back. (The Greeks didn't know the earth is shaped like a ball.) In the 16th century, a mapmaker used a picture of Atlas holding up the globe. Since that time, a book of maps has been called an Atlas. This story could also be called _______________.