McGraw-Hill Science Return to Book List
Lightning
Grade 5
Science Magazine & World of Science
 
Earth and Its Resources, Topic 2: Earth's Changing Crust
Waves of Erosion
Keyword: WEATHERING

Did You Know...
Soil erosion is believed to have been one of the reasons for the fall of the ancient civilization of Mesopotamia.

 

The Evergreen Project: Shorelines

This huge Web site is packed with information about ocean coastlines. Just click the topics on the left side of the screen.

Questions

  1. Give an example of an exoskeleton that you might find at a beach.

  2. Do salt water and fresh water mix freely in estuaries?

  3. Describe how estuaries look from space.

  4.  

Surviving the Dust Bowl

Here is a resource guide from a PBS television show. This site includes a timeline, maps, and articles about the Dust Bowl. Read the suggestions for classroom discussion, and read the eyewitness accounts.

Questions

  1. What year held the worst drought in American history?

  2. Why five-state region made up the dust bowl?

  3. What farming practices increased erosion during the Dust Bowl era?

  4.  

Sands of the World

Want to learn more about beaches and beach sand? Here's a good place to start. Be sure to read about the "Singing Beach" in Amino-Chou, Japan.

Questions

  1. What are the highest sand dunes in North America?

  2. Where is the world's largest hourglass? How long does it take for sand to run through it?

  3. What is musical sand?

  4.