Chemical Reactions

In an exothermic reaction, heat is ...

• taken in or absorbed
• given out or released

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

In an endothermic reaction, heat is ...

• taken in or absorbed
• given out or released 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What type of reaction occurs in a hand warmer

• exothermic
• endothermic

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-6

NGSS.MS-PS3-4

Exothermic reactions...

• Absorb energy
• Release energy
• Release Color
• Absorb Color

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Is photosynthesis an exothermic or endothermic reaction?

• Endothermic
• Exothermic
• Neither

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

If a chemical reaction is EXOTHERMIC, the temperature would....

• Stay the same
• Increase
• Decrease

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

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

Alka-seltzer in water is an example of a 

• Endothermic reaction
• Exothermic reaction
• Dissolving a salt
• physical change 

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

When you freeze water, it turns to ice.  What kind of change is this?

•  Physical
• Chemical

Tags

NGSS.MS-PS1-4

Sugar dissolves in water.  This is an example of....

• Physical Change
• Chemical Change