Activity
PBS

Pbs Teachers: Water Density

For Teachers 3rd - 8th
Demonstrate the effect that dissolving different amounts of salt in water has on the density of the liquid.
Article
Other

Solubility of Things: Factors Affecting Solubility

For Students 9th - 10th
Find out how temperature, polarity, pressure, molecular size, and stirring affects the speed of dissolving.
Website
Ducksters

Ducksters: Chemistry for Kids: Chemical Mixtures

For Students 9th - 10th
Explore all about chemical mixtures on this site including solutions, alloys, suspensions, colloids, dissolving, examples, and facts.