Sea World Parks & Entertainment
Sea World: Biodiversity
Depicts biodiversity with a brief narrative. Includes vocabulary, bibliography, and one activity. Subject matter at an upper intermediate grade level or higher.
CK-12 Foundation
Ck 12: Life Science: Origins of Life
[Free Registration/Login may be required to access all resource tools.] There is good evidence that life has probably existed on Earth for most of Earth's history. Fossils of blue-green algae found in Australia are the oldest fossils of...
European Space Agency
European Space Agency: Story of the Universe
The story of the universe is told in this engaging site by the European Space Agency. The history of European space science is timelined with dates ranging from 1066 to present day. The birth of galaxies, the big bang, and the beginnings...