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
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
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