To learn more about sand dunes:

1. Go to the Grains of Sand WWW Sheet and print it.

2. Visit these Web sites. Then complete the WWW Sheet.
    Great Sand Dunes National Monument
    Death Valley Eureka Dunes
    Sand Dunes

3. Visit these Web sites to see more photos of sand dunes:
    1. Dune 1
    2. Dune 2
    3. Dune 3

4. For more information, visit these Web sites. Click and drag in the photo in "Panoramic View" to see different parts of the picture.
    Geology
    Panoramic View