Evidence of a chemical change

A change that results in the formation of new chemical substances

• chemical change

• physical change

Tags

NGSS.MS-PS1-2

Which of the following is a sign that a chemical reaction has occurred?

• change in shape
• melting
• formation of a gas
• dissolving

Tags

NGSS.MS-PS1-2

Fizzing, foaming, and burning are all examples of

• Chemical change
• Physical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of these is a result of a chemical change?

• A mixture
• A solution
• A new substance
• Melting or freezing

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following indicates a chemical change?

• Change in state of matter
• Temperature change
• Change in size 
• Change in shape

Tags

NGSS.MS-PS1-2

Physical or Chemical Change?  Iron rusts

• Physical Change
• Chemical Change

Tags

NGSS.MS-PS1-2

The formation of a solid when two liquids combine is called?

• Solidification

• Freezing

• Precipitate

• Solubility

Tags

NGSS.MS-PS1-2

Which is NOT evidence of a chemical change?

• Unexpected color change

• gas produced

• breaking

• temperature change (with no outside heat added)

Tags

NGSS.MS-PS1-2

Which is NOT evidence of a chemical change?

• Unexpected color change

• gas produced

• melting

• temperature change

Tags

NGSS.MS-PS1-2

Which of the following options provides evidence of a CHEMICAL change?

• Wood is burned releasing ash and smoke

• Rocks separate when soil is sifted

• Boiling water bubbles when heated

• Salt dissolves in water

Tags

NGSS.MS-PS1-2