Order early for pre-holiday delivery. Flinn will be closed December 24th, 2025,
through January 4th, 2026, reopening Monday, January 5th, 2026.
Orders received after 10:30 AM Central Time on Tuesday, December 23rd, 2025,
will ship after we return.
Almost all of the chemical reactions in living organisms are catalyzed by enzymes—nature’s highly active catalysts—which make chemical reactions occur about one million times faster than they would alone. With The Floating Catalyst: An Enzyme Reaction Demonstration—ChemTopic™ Lab Activity, look at the reaction of catalase, one of the most active known enzymes, as it catalyzes the decomposition of hydrogen peroxide in plant and animal tissues. Available as part of the Kinetics—ChemTopic™ Labs digital collection. Click the Price link for digital collection pricing.