1. Lesson 21 Vocabulary

2. To see what is good about something. Many visitors appreciate the art at the museum.

3. making a loud noise The music on the radio was blaring.

4. mixture The little boy looks like a combination of his mother and father.

5. loud noise The fireworks were pretty to look at but created a loud racket.

6. give an idea A teacher can suggest different places to find information.

7. active at night A bat is a nocturnal animal.

8. hard work Pushing a boulder up a hill takes some effort.

9. right away The woman was worried because she needed to be at work, promptly.

10. present something The teacher wanted to introduce the students to the new librarian.

11. difficult actions The tight rope walker performed many incredible feats.