Instructional Video5:45
Curated Video

Global Aquatic Ecosystems

3rd - 8th
“Global Aquatic Ecosystems” examines the diversity of freshwater ecosystems and marine ecosystems, discussing their varying temperatures, depths, salinities, and biodiversity.
Instructional Video2:58
Curated Video

Oceans: The Intertidal Zone

6th - 12th
Discover how ever-changing tidal ecosystems create opportunities for both predators and prey. Biology - Ecosystems - Learning Points. Tides are a powerful force of nature, created by the Moon's gravitational pull. Tides affect marine...