K20 LEARN
Timmy Made Mistakes: Lab Safety
It's better to be safe than sorry ... just ask Timmy! Engage learners with a hilarious lab safety review activity. The instructional activity, part of the K20 series, revolves around identifying, describing, and remediating disastrous...
NASA
Making Oxygen and Carbon Dioxide
Some like it hot! Scholars observe both exothermic and endothermic reactions as part of the carbon dioxide oxygen cycle. First, scientists demonstrate (or watch) a chemical reaction to create pure oxygen using fire for confirmation....
American Chemical Society
A Catalyst and the Rate of Reaction
More than 90 percent of chemical products are made using a catalyst. Lesson demonstrates the way a catalyst changes the rate of reaction without altering the chemical reaction. A catalyst doesn't appear as a reactant or a product, yet it...