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
Get the definition of an endothermic reaction and endothermic reaction examples. Learn how the terms endothermic and endergonic are related.| Science Notes and Projects