PPT
Other

Seton Hall University: Slide Show Explaining Oxidation Reduction Reactions

For Students 9th - 10th
A slide show covering oxidation-reduction. Many examples are shown and all appropriate vocabulary is covered.
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NASA

Nasa: Beginner's Guide to Aerodynamics

For Students 9th - 10th
Includes exhaustive information and a wealth of activities pertaining to aerodynamics and the physics of flight.