This 25 term matching learning activity worksheet will help your students to learn terms associated with chemical reactions and energy. Terms include: rate of reaction, catalyst, spontaneous process, endothermic reaction, fossil fuels, calorimeter, heat, solar energy, combustion, activation energy, joules, exothermic reaction, and other relevant terms. Ideal for a Chemistry or related course and can be used as a pretest, warm up, classwork assignment, quiz, or review activity. Answer key pr