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See All 17 Resources
Observe an animation of an asteroid impact at the end of the Cretaceous Period.

Exploring Earth: Visualizations features over 100 animations and images that illuminate key concepts in earth science...

Photo pf Kennicott and Root Glaciers, Alaska.  Taken by Z. Smith

Exploring Earth: Investigations provides more than 75 earth science investigations. Each presents photos and text (and...

Photo copyright R. Gendler: Image that reveals that the Andromeda Galaxy's (M31's) core is composed of a ring of old, red stars and a newly discovered disk of young, blue stars.

Astronomycenter.org is a collection of Astronomy 101 reviewed digital resources for teachers and students...

Early Cretaceous period (120 Ma)

Teach the Earth offers hundreds of teaching activities, visualizations, and resources for teaching earth...


National Science Foundation

National Science Foundation

National Science Foundation

National Science Foundation
  See All 17 solar system Resources  
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