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By XKCD
This small infographic shows the thickness of see ice up against famous city skylines. Notice how much bigger the ice sheets are than the cities!
Grade Level   4 5 6 7 8 9 10 11 12
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2
The National Marine Sanctuaries Media Library is a comprehensive collection of public domain photographs and short video clips from all 14 marine protected areas managed by NOAA. The images provide an up-close look at unique wildlife and habitats and remind us of the need to protect these areas....
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
Image Collections Teaching Media
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