Exothermic & Endothermic Reactions

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases energy in the form of heat, causing the surrounding temperature to increase.

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs energy from its surroundings, resulting in a decrease in the surrounding temperature.

Front

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

Back

The temperature of the surroundings decreases.

Front

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

Back

The temperature of the surroundings increases.

Front

In an endothermic reaction, more energy is _________.

Back

absorbed.

Front

In an exothermic reaction, more energy is _________.

Back

released.

Front

What does the prefix 'endo' mean?

Back

The prefix 'endo' means 'in' or 'within'.

Front

What does the prefix 'exo' mean?

Back

The prefix 'exo' means 'out' or 'outside'.

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, where sunlight is absorbed to convert carbon dioxide and water into glucose.