Atoms, Elements, Molecules and Compounds

Chemistry of the Olympics- What olympic sporting equipment is made of
Olympic Minerals - Worksheet about metals used in the Olympics
Periodic table of Videos from Nottingham University - a video for each element of the periodic table.

Chemical Reactions

Top 10 Amazing Chemical Reactions Videos

General Chemistry Sites

Chemistry 4 Kids
FossWeb - Chemistry from the Full Option Science System
Science is Fun
Chemistry games at "Game Zone"

States of matter - solids, liquids and gases

Interactive animation of states of matter
Clouds - Photo gallery from National Geographic
Physical of Chemical Change - A Quia quiz

Separating Mixtures

Separating Mixtures

Science of Cooking

Exploratorium - Science of Cooking has recipes, activities, and Webcasts that will enhance your understanding of the science behind food and cooking.