Explore the states of matter by heating, cooling, and compressing atoms and molecules. Watch as solids melt, liquids boil, and gases condense while...

Discover how light interacts with molecules in our atmosphere! Explore how different types of light, from microwaves to ultraviolet, cause molecule...

Test your knowledge of solids, liquids, gases, and plasmas in Matter Sorter! Quickly sort falling objects into the right bins before time runs out, and learn about the fascinating world of plasmas along the way.

Mix chemicals with water and watch the solution change color as its concentration increases. Experiment with volume and solute to see how concentra...

Explore atomic bonds. Change states of matter by adjusting temperature and pressure in this simulation that demonstrates how atoms move and bond.

In this simple puzzle game players try their hand at arranging molecules with different shapes and properties into an ordered, stable configuration.