Chemical Changes and Physical 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

Tags

NGSS.MS-PS1-2

Which of the following is a chemical property of water?

• Reacts with pure sodium.
• Boils at 100 ^oC.
• Dissolves sugar easily. 
• Has a density of 1 gm/mL

Tags

NGSS.MS-PS1-2

Which of the following matches the correct definition to an example?

• Chemical Change: My foot changes color
• Physical Change: My microwave exploded
• Chemical Change: My dog ate my homework
• Physical Change: My homework burned in a fire

Tags

NGSS.MS-PS1-2

Define a Physical Property

• A property of matter not involving in its manifestation a chemical change
• A property in which stops a chemical reaction from occuring.
• A property or behavior of a substance which undergoes a chemical change or reaction.
• A property which makes the object smell or taste different.

Define a Chemical Property

• A property of matter not involving in its manifestation a chemical change
• A property in which stops a chemical reaction from occuring.
• A property or behavior of a substance which undergoes a chemical change or reaction.
• A property which makes the object smell or taste different.

Is ripping paper a chemical or physical change?

• Chemical
• Physical
• neither
• both

Is cooking an egg a 

• chemical change
• physical change
• neither
• both

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Is a car getting rusty a 

• Chemical Change
• Physical Physical
• Both
• Neither

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

When gases condense and liquids freeze energy is

• Lost
• Gained
• Stays the same

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

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