Endothermic and Exothermic Reactions

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 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 instrument would you use to detect an endothermic or exothermic reaction?

Back

Thermometer.

Tags

NGSS.HS-PS1-5

NGSS.HS-PS3-4

Front

In an exothermic reaction, heat is...

Back

Given out.

Front

During an endothermic reaction, if you touch the beaker, it would feel...

Back

Cold.

Tags

NGSS.HS-PS1-4

Front

During chemical reactions, bonds are...

Back

Both broken and formed.

Tags

NGSS.HS-PS1-4

NGSS.HS-PS1-7

Front

What is a sign that a chemical reaction has occurred?

Back

Bubbles of gas appear.

Tags

NGSS.MS-PS1-2

Front

What is the law of conservation of energy?

Back

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Tags

NGSS.HS-PS3-4

Front

Give an example of an endothermic reaction.

Back

Photosynthesis is an example of an endothermic reaction, where plants absorb sunlight to convert carbon dioxide and water into glucose.

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

Front

Give an example of an exothermic reaction.

Back

Combustion of fuels, such as burning wood or gasoline, is an example of an exothermic reaction.

Tags

NGSS.HS-PS1-4