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Handout
US Geological Survey

U.s. Geological Survey: Building Stones of Our Nation's Capital

For Students 9th - 10th
Pictures and text describe the source and appearance of many of the stones used in the buildings and monuments in Washington, D.C. Included are a geologic time chart and an illustrated map of the geologic and geographic features of the...
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Graphic
Tech4Learning

Pics4 Learning: Images for Education: Castles

For Students Pre-K - 1st
A treasury of photos of various castles from around the world! Although the images do not contain much information, they can be used as a visual reference for students of all grade levels.