Plate Tectonics @ NASA's Observatorium
Earth's continental landmasses, upon which we live, may be thought of as ships drifting upon a sea, propelled wherever the currents take them. This slow voyage of the continents has reshaped the face of the Earth throughout its history.
For Grades: 5-12

Continental Drift and Plate Tectonics @ NASA's For Kids Only Website
Have you ever noticed how South America and Africa seem to fit together? If you have, you aren't alone.
For Grades: 3-8

Volcanoes — So Hot, They're cool!
In this meteorology and volcanology activity, the learner will be looking for the effect of eruptions on global temperature to see if there is a pattern.
For Grades: 5-8