Harvard University
Cosmic Questions
Scholars learn the stories of the universe with a unit study on the cosmos. They model the universe, learn about the relationship with the electromagnetic spectrum, understand the big bang theory, and debate the existence of life on...
Princeton University
A Teacher's Guide to the Universe
Astronomers only observe four percent of the universe as the rest hides in darkness. The size, shape, and movement of the universe are the focus for an long-term high school unit. Its 43 lessons include hands-on experiments, direct...
CK-12 Foundation
Ck 12: Biology: How Earth Formed
[Free Registration/Login may be required to access all resource tools.] Describes the Earth's formation.