Discover how the molecular make-up of water affects its density.

The University of Siegen provides a lovely exothermic reaction shown by four large photos. Sodium peroxide and zinc powder with a touch of water.

Explore the process of condensation as it pertains to molecular movement in water vapor.

Discover how covalent molecular bonding affects the energy levels of electrons.

Learn how substances change from a liquid to a gaseous state in the process of evaporation.

Find out if liquids can dissolve in water.

Use this interactive animation to find out about whether or not gases dissolving in water.

Learn how the molecular movement in different temperature water affects the density of the liquid.

These models show the structures of some basic molecules such as water and carbon dioxide, then move on to show more complex molecular strautures.

Investigate the difference between the solubility of salt and sugar in hot and cold water.

Drink plenty of water to stay hydrated.

Hunkin's Experiments is a group of simple cartoon illustrations of scientific principles. Some would work well in the classroom, but others have little value beyond entertaining students. All of the projects are easy to do. This one...

This photo shows a completed chromatography chemistry experiment. The colors have clearly separated from each other along the piece of paper. The original black ink was separated using an ethanol and water mixture solvent.

A computer generated image showing a 3D model of hydrogen bonds in water.