Endothermic Exothermic
Absorbs heat from the surroundings
Releases heat into the surroundings
Breaking bonds is
Making bonds is
Melting ice is
Boiling is
Combustion is
Freezing is
A cold pack is
A hand warmer is
Endothermic Exothermic
Breaking bonds is Exothermic Making bonds is Endothermic
Melting ice is Endothermic Boiling is Exothermic
Combustion is Exothermic Freezing is Endothermic
A cold pack is Endothermic A hand warmer is Exothermic