Thousands of mounds and hills in Mars' barren northern plains are full of clay minerals, providing evidence that the rocks ...

6. Show students how to cut their eggs. 7. Ask students to name the different layers of the Earth's interior using the egg as a model that represents the Earth. Caution: The egg analogy has some ...

Objective: As a result of this activity, students be able to describe and demonstrate how different major geological processes shape the physical environment of the earth. Videotape of "Falconer's ...