Exothermic and Endothermic Reactions

Front

What is an exothermic reaction?

Back

A reaction that releases heat into the surroundings.

Front

What is an endothermic reaction?

Back

A reaction that absorbs heat from the surroundings.

Front

Give an example of an exothermic reaction.

Back

Combustion of fuels, such as burning wood or gasoline.

Front

Give an example of an endothermic reaction.

Back

Photosynthesis in plants.

Front

What happens to the temperature of the surroundings during an exothermic reaction?

Back

The temperature increases.

Front

What happens to the temperature of the surroundings during an endothermic reaction?

Back

The temperature decreases.

Front

What is the role of heat in an exothermic reaction?

Back

Heat is released as a product of the reaction.

Front

What is the role of heat in an endothermic reaction?

Back

Heat is absorbed as a reactant in the reaction.

Front

What is a common use of exothermic reactions in everyday life?

Back

Hand warmers use exothermic reactions to provide heat.

Front

What is a common use of endothermic reactions in everyday life?

Back

Ice packs use endothermic reactions to provide cooling.