Free Presentations in PowerPoint format

Physics - scroll down (many, HS)

World of Teaching

Step

PowerPoint Physics Units

Primary Resources Science (many)

Light/Optics

Sense of Sight

Color Spectrum

Optical Illusions 

Sound & Waves

Thermo

Electricity

Force/Motion/Gravity

Magnets/Magnetism  

Pressure and Moments

Simple Machines

Bridges

Robots

Flight & Space

Skydiving & Parachutes

Balloons/Kites

Paper Airplanes

Amateur (Ham) Radio and Morse Code

Environmental Science

Reuse, Reduce, Recycle 

Global Warming

Albert Einstein

See Science Index for More  

For Kids

Physics Games for Kids 

Flash Presentations

For Teachers

Lots of Lessons - Physics

Free Video Clips/Mini Movies for Kids

Free Clipart for Science