In less than 25 years, the continent of Australia moved 4.9 feet thanks to plate tectonics. The presentation introduces the idea of the layers of the earth as well as plate tectonics. It goes into why the plates move and where we believe...

A short and straightforward slideshow presentation is a great addition to your lesson on plate tectonics. With demonstrative diagrams and helpful facts, the presentation helps to reinforce a concept that can be a little tricky for...

When state and local authorities fail to uphold the Federal Court orders for integration at Central High School, President Dwight D. Eisenhower sent in federal troops to enforce those orders. Using an array of photos and primary source...