Use Text Features and Search Tools Practice Test

Read this page from a science magazine.

PENGUINS

Penguins have thick feathers to stay warm in cold water.

Their bodies are good for swimming.

SIDEBAR

Did You Know? Some penguins can swim faster than many fish!

What extra information does the sidebar give?

You are using a book index.

INDEX

Earth, 2–5

erosion, 18–19

fossils, 22–23

rocks, 10–17

On what pages can you find information about rocks?