Grand Canyon: A Trail Through Time

The passage says that the Colorado River made a channel. What is a channel?

• a new lake

• a roaring noise

• a mound of land

• a pathway for water

Why can visitors to the Grand Canyon find shells and fish teeth in some of the rock layers?

• The land was covered by water long ago.

• The Indian people buried their food scraps there.

• Riders bring food with them and leave some behind.

• Burrowing animals move these objects up from the river.

Who built the granaries—storage places for grain—into the Canyon walls?

• Canyon guides

• Canyon visitors

• Anasazi Indians

• Havasupai Indians

Which statement supports the idea that the Grand Canyon is one of the Seven Natural Wonders of the World?

• A. A rushing river runs along the bottom of the Canyon.

• B. Many different plants and animals make their home in the Canyon.

• C. Visitors can ride mules to the bottom of the Canyon and camp there.

• D. The Canyon is more than a mile deep and more than 250 miles long.

What is the main way the author builds the passage?

• A. She names difficult problems and explains how they can be solved.

• B. She talks about what happens over time during a day in the Canyon.

• C. She asks and answers common questions about the Canyon and its history.

• D. She gives important information first and then moves to the less important.