Curated OER
Condensation
If your class has studied condensation? Then they're ready to take this super-short quiz. They answer three questions related to the nature of condensation. This presentation is interactive and gives a thumbs up or down, depending on how...
American Chemical Society
Middle School Chemistry: Density: Sink and Float for Liquids
Students determine whether a liquid will sink or float in water by comparing its density to the density of water.