You walk into a large dark room. You call out, "Is anybody there?" Then you hear the words you spoke again, "Is anybody there?" You have heard an echo. Did you know that some animals use echoes to locate objects?
Write a personal narrative about hearing an echo. You can use the narrative on page 548 of your textbook for ideas. Start by learning more about echoes through research. Here are some questions to guide your research:
What causes an echo?
Where are some good places to hear echoes?
Are you ready? Begin by visiting the Web sites in Step 2. Look for answers to the questions above, and write down what you learn in the note-taking boxes.
With teacher supervision, you may use search engines to research other Web sites. You also can research echoes at the library. When you are ready, follow Steps 3 and 4 to write your personal narrative.
Step 2. Research
Research answers to the questions you were asked in Step 1. Visit these Web sites. Take notes about them on this page, too!
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