Website
PBS

A Science Odyssey: You Try It: Plate Tectonics

For Students 9th - 10th
Using your computer mouse you can simulate transforming, collisional, divergent and convergent plate boundaries. Descriptions of each plate boundary are also available.
Article
McMaster University

The Microcomputer: Input

For Students 9th - 10th
Information about computer hardware input devices, types, and their uses.