1. ENDOTHERMIC AND EXOTHERMIC REACTIONS

2. EXOTHERMIC REACTIONS Chemical Reactions that RELEASE heat with the products. You may see an exothermic reaction written like this… REACTANTS PRODUCTS + ENERGY OR REACTANTS PRODUCTS + HEAT

3. ENDOTHERMIC REACTIONS CHEMICAL REACTIONS THAT ABSORB ENERGY OR HEAT IN THE REACTANTS. You may see an endothermic reaction written like this… ENERGY + REACTANTS PRODUCTS OR HEAT + REACTANTS PRODUCTS

4. EVIDENCE OF REACTIONS AFTER AN EXOTHERMIC REACTION, THE PRODUCTS FEEL HOT! AFTER AN ENDOTHERMIC REACTION, THE PRODUCTS FEEL COLD!

5. ENDOTHERMIC OR EXOTHERMIC? Sunlight + 6CO 2 + 6H 2 O C 6 H 12 O 6 + 6O 2 CH 4 + 2O 2 CO 2 + 2H 2 O + Energy ENDOTHERMIC! EXOTHERMIC!