Chemical vs. Physical Reactions

What happens in ALL chemical changes?

• Change in state of matter
• A new substance is formed
• Bubbles are produced
• An explosion

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Is wood burning a physical or chemical change?

• Physical 
• Chemical

Tags

NGSS.MS-PS1-2

Is milk going sour a physical or chemical change?

• Physical 
• Chemical

Tags

NGSS.MS-PS1-2

Is mold growing on cheese a physical or chemical change?

• Physical 
• Chemical

Tags

NGSS.MS-PS1-2

Is making orange juice a physical or chemical change?

• Physical 
• Chemical

Tags

NGSS.MS-PS1-2

Is sharpening a pencil a physical or chemical change?

• Physical 
• Chemical

Is the formation of the grand canyon a physical or chemical change?

• Physical 
• Chemical

Tags

NGSS.MS-ESS2-2

Is copper tarnishing a physical or chemical change?

• Physical 
• Chemical

Tags

NGSS.MS-PS1-2

Which of the following is a reactant

• CH₄
• H₂O
• CO₂
• 2H₂O

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

In an exothermic reaction, energy is _________.

• Released
• Absorbed
• Stored
• Doubled

Tags

NGSS.HS-PS1-4