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.
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.