Sophia Learning
Sophia: Activation Energy: Lesson 1
This lesson will explain how activation energy is needed to start a chemical reaction. It is 1 of 5 in the series titled "Activation Energy."
ClassFlow
Class Flow: Rates of Change
[Free Registration/Login Required] This is part 4 of a 4 part series to include the nature of chemical reactions, reaction types, and balancing chemical equations.
Chem4kids
Chem4 Kids: Biochemistry: Enzymes
This tutorial takes a brief look at enzyme activity and how enzymes work as catalysts.
Other
University of Akron: General, Organic, and Biochemistry: Enzymes [Pdf]
Slideshow notes introduce enzymes: their purpose, process, and importance.
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