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Activity
SEDL

Oceans [Pdf]

For Teachers 3rd - 8th
This large PDF file integrates math, science, and language into several lessons about characteristics of the oceans. Topics include ocean currents, tides, density, marine life, and pollution.
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Website
American Chemical Society

American Chemical Society: Explore Chemistry: Water and Chemistry

For Students 9th - 10th
Explore water's unique properties in the activities here. Includes ideas for starting a chemistry club, ideas for Earth Day, articles, and videos.