Chapter 3 Section 2 Chemical Properties & Changes

What kind of properties can only be observed when a substance changes into a different substance?

• physical properties
• chemical properties
• liquid properties
• real properties

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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

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NGSS.MS-PS1-2

Is wood burning a physical or chemical change?

• Physical 
• Chemical

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NGSS.MS-PS1-2

A silver ring gets tarnished (becomes dull) as a result of being exposed to air and moisture. What is this an example of?

• Physical property

• Chemical property

• Physical change

• Chemical change

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NGSS.MS-PS1-2

Which of the following is NOT an example of a physical change?

• crumpled paper
• pencil sharpening
• shrunken clothing
• rust

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NGSS.MS-PS1-2

Rust on an iron bar is an example of chemical change.

• True 
• False

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following situations is evidence of chemical change? 

• Boiling water produces steam
• Adding vinegar to baking soda makes foaming bubbles
• Sharpening a pencil
• Cutting paper

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NGSS.MS-PS1-2

Which of the following below is a chemical property? 

• Color
• Density
• Boiling Point
• Reactivity with Acid

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NGSS.MS-PS1-2

Which example represents a chemical change occurring? 

• A blue bike is painted pink
• Sand paper is used to smooth wood
• When the two chemicals inside an ice pack are mixed it becomes cold 
• Paper is ripped into smaller pieces 

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NGSS.MS-PS1-2

Which of the following is NOT an example of chemical change?

• sour milk
• burning wood
• breaking a pencil
• rust

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NGSS.MS-PS1-2