Endothermic and Exothermic

O_2(g) + 2 H_2 (g) → 2 H_2O (g) + Energy

• endothermic

• exothermic

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

When heat is released it is an

• exothermic reaction

• endothermic reaction

• both

• none

Tags

NGSS.HS-PS1-4

Your hands get cold outside from not wearing gloves

• exothermic

• endothermic

• both

• none

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Fireworks are an example of

• exothermic

• endothermic

• both

• none

Tags

NGSS.HS-PS1-4

Have you ever eaten sherbet sweets candy? They fizz in your mouth and your tongue feels cold. Why do you think that is?

• It is an exothermic reaction

• It is an endothermic reaction

• It is made of ice

• It is dissolving your mouth

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The bag you made in class that felt cold afterwards was an example of an...

• Exothermic chemical reaction

• Endothermic chemical reaction

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Endothermic reactions feel...

• Hot

• Cold

Tags

NGSS.MS-PS1-4

Exothermic reactions feel...

• Hot

• Cold

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

True or false: Exothermic reactions mostly absorb energy.

• True

• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-5

True or false: Exothermic reactions mostly release energy.

• True

• False

Tags

NGSS.HS-PS1-4