Enzyme Reaction Rates Using Toothpicks

After an explanatory introduction to sugars and enzyme activity, biochemists discover whether lactase is needed to digest lactose, sucrose, and milk as a whole. High school science lab skills are required for these investigations.

How quickly do enzymatic reactions occur? Assist the class as they examine heat and pH change to determine the rate of chemical reactions using catalase as an enzyme. Watch them "glow" with excitement!

Has your class ever wondered exactly what jump starts chemical reactions within the body? Pupils view a short video segment that animates a chemical reaction, complete with enzymes and substrates, so they may further understand this...

Mr. Mole and Mr. Matchmaker entertain and educate your chemists about how quickly or slowly reactants are used up in a chemical reaction. Thorough explanations of the influencing factors are offered, and demonstrations are done. After...

Does increasing temperature increase the rate of a chemical reaction? Junior chemists examine the effects of temperature on reaction rate using an engaging interactive. Pupils select the temperature of the reaction vessel, then observe...

Who wants a soda pop? Your chemistry class will enjoy the opportunity to sip some soda after practicing neutralization of an acid through titration! Beginning with a video that teaches how to write neutralization reaction equations and...

Enzymes speed up chemical reactions by factors of at least a million. This project investigates some of the factors that affect how fast enzymatic reactions occur.

This video discussed kinetics which is the rate of the reactions. Learn about activated complexes and activation energy. Learn variables that affect the rate of reaction like adding a catalyst, increasing the concentration of molecules,...

Hydrogen peroxide bubbles might look painful on a cut, but they are actually doing an important job. The video explores enzymes by allowing learners to see active sites on enzymes and how substrates, like a key fitting a lock, fit...

It's gettin' hot in here! An investigative activity has learners measure the heat of reaction in a virtual setting. After exploring the reaction, they attempt to create a solution at an exact temperature.