Students gain an understanding of the methods used to explore the earth's surface. Students create a time line leading to the first satellite image of the Earth that includes the various methods utilized to observe the earth's surface.

Enhance the research skills of your High schoolers with this online assignment. They use the Internet to find the answers to trivia questions. All the answers begin with the letter n.

The Earth has been in a state of continual change since its formation. The major part of this change, involving volcanism and tectonics, has been driven by heat produced from the decay of radioactive elements within the Earth. The other...