Mountains of Jokes About Rocks, Minerals, and Soil - page 47

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Books
Bollard, John. Scholastic Children’s Thesaurus.
New York: Scholastic Reference, 2006.
Tomecek, Steve. National Geogrpahic Kids Everything Rocks
and Minerals. Washington, DC: National Geographic, 2011.
Young, Sue. Scholastic Rhyming Dictionary. New York:
Scholastic, 2006.
Internet Addresses
Rock Hounds: Discover How Rocks Are Formed
<http://www.fi.edu/fellows/fellow1/oct98/create/>
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Discovery Kids: Games—Volcano Explorer
<http://kids.discovery.com/games/build-play/volcano-explorer>