Learn about hand warmer chemistry and get instructions for four easy chemical hot packs. Learn how chemical hand warmers work.| Science Notes and Projects
Perform a safe and easy endothermic reaction demonstration. The chem demo uses simple common household materials to make a cold reaction.| Science Notes and Projects
Discover three easy ways to make a homemade cold pack (chemical ice pack) using simple materials and endothermic reactions.| Science Notes and Projects
Learn what an exothermic reaction is and get examples of exothermic reaction, including simple demonstrations you can try.| Science Notes and Projects
Learn about the three types of heat transfer: conduction, convection, and radiation. Get helpful examples.| Science Notes and Projects