CK-12 Foundation
Ck 12: Physical Science: Conservation of Energy in Chemical Reactions
[Free Registration/Login may be required to access all resource tools.] Describes the law of conservation of energy and how energy is conserved in chemical reactions.
CK-12 Foundation
Ck 12: Physical Science: Conservation of Energy in Chemical Reactions
[Free Registration/Login may be required to access all resource tools.] Covers the law of conservation of energy and how energy is conserved in chemical reactions.
Khan Academy
Khan Academy: Test Prep: Mcat: Chemical Processes: Thermochemistry: Endothermic vs. Exothermic Reactions
Using an illustrated example, the difference between an endothermic and an exothermic reaction is described. The concept of enthalpy, or heat energy change, is explained, and the energy diagrams of reactions are presented.
Other
University of Liverpool: Reactions in Everyday Life: Endothermic and Exothermic
Equations illustrating both endothermic and exothermic reactions, with energetics involved.
Other
On Line Study Guide/reaction Rates and Equilbrium
Here's a full and understandable discussion of Reaction Rates and Equilibrium.
Center of Science and Industry
Cosi Columbus: Mighty Seeds
Learn about the process of germination in this hands-on science experiment. Includes full list of materials, procedures, and scientific explanation of why plants can survive in a variety of environments.
Sophia Learning
Sophia: Endothermic/exothermic Reactions: Lesson 3
This lesson explains the difference between endothermic and exothermic chemical reactions. It is 3 of 4 in the series titled "Endothermic/Exothermic Reactions."
Science Struck
Science Struck: Endothermic Reaction Examples
Explains what an endothermic reaction is and gives four everyday examples.