Chymist
Empirical Formula of a Compound
Because of the work of John Dalton, we are able to write formulas for compounds. The hands-on experiment has scholars prepare a compound from its elements. Using mass data, individuals write the empirical formula for the compound.
Bill Nye
Bill Nye: Hole Y Water
This tutorial from Bill Nye uses an experiment with water and sugar to show how matter is mostly empty space.
Bill Nye
Bill Nye: Sock It to Me
This tutorial by Bill Nye explains how evaporating water (or sweat!) can cool you down.
Other
Science Alive: Pure Substances, Mixtures, and Separations
One way scientists talk about matter or substance-that is, the stuff in the world-is in terms of pure substances and mixtures. Pure substances are substances that contain only one kind of molecule. Water with nothing else in it is a pure...
PBS
Pbs Teachers: Bottle Fountain Experiment
Demonstrate how heating expands air molecules by constructing a bottle fountain powered by air pressure.