Endothermic and Exothermic

The energy absorbed by endothermic reactions is used to...

• form chemical bonds between atoms that release a lot of energy when they're formed

• break chemical bonds that require a lot of energy to break

Tags

NGSS.HS-PS1-4

The energy released by exothermic reactions happens when...

• chemical bonds that release a lot of energy when they're formed are formed between atoms

• chemical bonds that require a lot of energy to break are broken

Tags

NGSS.HS-PS1-4

Combustion (fireworks, explosions, burning, etc.) is an example of which reaction?

• Endothermic

• Exothermic

• Neither

Tags

NGSS.MS-PS1-4

When the temperature decreases, it is an _______ reaction.

• Exothermic

• Endothermic

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Baking bread is an example of which reaction?

• Endothermic

• Exothermic

• Neither

Tags

NGSS.MS-PS3-4

Burning sugar is an example of which reaction?

• Endothermic

• Exothermic

• Neither

Cooking an egg is an example of which reaction?

• Endothermic

• Exothermic

• Neither

Tags

NGSS.MS-PS1-4

Photosynthesis is an example of which reaction?

• Endothermic

• Exothermic

• Neither

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which reaction releases energy?

• Exothermic

• Endothermic

Which reaction absorbs energy?

• Exothermic

• Endothermic

Tags

NGSS.MS-PS3-4