Chemical reactions that produce energy or that require energy
We have all seen a burning candle or burning wood. Burning is a chemical reaction between the burning object and the oxygen gas. Burning is the most well known chemical reaction that creates heat energy. Of course not all chemical reactions create energy as much as burning. Most heat producing chemical reactions may have no flame at all. 

In this project we will research the chemical reactions that produce or require energy. We will also attempt to find a general rule that helps us determine if a chemical reaction will produce or absorb energy.

 Project description
During this project you perform varieties of experiments to determine which chemical reactions absorb energy and which chemical reactions produce energy.
 Details of this project
More details or support for this project is available for the members of Material needed for experiment or a science kit about this title may be available at