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 pathway for water

• a mound of land

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

• Burrowing animals move these objects up from the river.

• The land was covered by water long ago.

• Riders bring food with them and leave some behind.

• The Indian people buried their food scraps there.

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?

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

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

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

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

What is the main way the author builds the passage?

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

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

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

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