Endothermic and Exothermic Reactions

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases heat to its surroundings, resulting in an increase in temperature.

Tags

NGSS.HS-PS1-4

Front

What is an endothermic reaction?

Back

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

Tags

NGSS.HS-PS1-4

Front

What happens to temperature during an exothermic reaction?

Back

The temperature increases.

Tags

NGSS.HS-PS1-4

Front

What happens to temperature during an endothermic reaction?

Back

The temperature decreases.

Tags

NGSS.HS-PS1-4

Front

Give an example of an exothermic reaction.

Back

Combustion of hydrocarbons, such as burning a candle.

Tags

NGSS.HS-PS1-4

Front

Give an example of an endothermic reaction.

Back

Photosynthesis in plants, where sunlight is absorbed.

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

Front

In an exothermic reaction, heat is:

Back

Given out.

Tags

NGSS.HS-PS1-4

Front

In an endothermic reaction, heat is:

Back

Taken in.

Front

What is the role of heat in an exothermic reaction?

Back

Heat is released into the surroundings.

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

Front

What is the role of heat in an endothermic reaction?

Back

Heat is absorbed from the surroundings.

Tags

NGSS.HS-PS3-4