Exothermic or Endothermic

What happens when two or more chemicals (molecules) react? The bonds break and the atoms rearrange into something _______.

• new

• on fire

• compound

• mixture

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

When the atoms rearrange they make new bonds. The breaking and creating of bonds can _______ or _______ energy.

• release, absorb

• store, dissipate

• reflect, refract

• conduct, insulate

Tags

NGSS.HS-PS1-4

An exothermic reaction _______ energy.

• absorbs

• releases

Tags

NGSS.MS-PS1-4

An endothermic reaction _______ energy.

• absorbs

• releases

Tags

NGSS.MS-PS1-4

During an endothermic reaction the temperature of the surroundings goes _______.

• up

• down

• sideways

• nowhere

Tags

NGSS.MS-PS1-4

During an exothermic reaction the temperature of the surroundings goes _______.

• up

• down

• sideways

• nowhere

Tags

NGSS.MS-PS3-5

During Photosynthesis energy is absorbed. What kind of reaction is it?

• Physical
• Exothermic
• Endothermic
• Photothermic

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

Chemical reactions that release energy are known as ________________________.

• Endothermic
• Exothermic
• Boring
• Reactions

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Chemical reactions that absorb energy are known as ________________________.

• Endothermic
• Exothermic
• Boring
• Explosive

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Burning wood in a campfire is what kind of reaction?

• Endothermic

• Exothermic

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5