American Chemical Society
Middle School Chemistry: Changing State Melting
Explore the phase change that occurs when ice is melting.
American Chemical Society
Middle School Chemistry: Changing State Freezing
Discover how freezing works, when the change of state moves from liquid to solid.
American Chemical Society
Middle School Chemistry: Changing State Condensation
Explore the process of condensation as it pertains to molecular movement in water vapor.
American Chemical Society
Middle School Chemistry: Moving Molecules in a Solid
Explore the movement of the molecules in a solid.
American Chemical Society
Middle School Chemistry: The Ups and Downs of Thermometers
See how thermometers measure temperature by the molecular movement of the liquid inside.
American Chemical Society
Middle School Chemistry: Molecules in Motion
Slide the temperature gauge and see what happens to the movement of the molecules.
American Chemical Society
Middle School Chemistry: Molecules Matter
Explore molecular motion and attraction, and see how those phenomena affect the matter they comprise.
American Chemical Society
It's Elemental:
This periodic table offers a brief description and an example when you pause the mouse pointer over the element icon. Click the linked periodic abbreviation for detailed information.