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Chemistry - scroll down (many, HS) 

Chemistry ppts (many)

Chemistry ppts (Step VA Schools, many)

Showing Chemistry Bigger than Life

Atomic Structure

Periodic Table

Acids, Bases, pH Scale, Solutions

States of Matter   

Energy

Lab and Lab Safety

Carbon Cycle

Forensics for Kids

Microscopes

Nanoscience

Reactions of Metals

 Patterns of reactivity

 Environmental Chemistry

 Using Chemistry

Primary Resources Science 

Carbon Family 

See Science Index for More 

For Kids

Free Online Chemistry GAMES & Kids Sites 

Free Flash Presentations

For Teachers

Lots of Lessons - Chemistry

Free Video Clips/Mini Movies

Free Online Science Games for Kids

Free Clipart for Science