Physical and Chemical changes

What is an example of a Chemical change?

• Ripped paper 
• boiled egg
• cracked egg
• sugar in water

Tags

NGSS.MS-PS1-2

Which is a physical change?

• burning match 
• vinegar in baking soda 
• melting butter
• cooking an egg

Tags

NGSS.MS-PS1-4

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 is a sign that a chemical reaction has occurred?

• change in shape

• melting

• formation of a gas (bubbles form)

• dissolving

Tags

NGSS.MS-PS1-2

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

• crumpled paper
• pencil sharpening
• shrunken clothing
• sour milk

When two or more substances are combined so that each substance maintains its own properties, the result is a(n)______.

• Element

• Physical Change

• Chemical change

• Psychological Change

A white tablet is dropped into water. The water becomes cloudy and bubbles are produced. What type of change has occurred?

• Physical change

• Chemical change

• No change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A chemical change...

• Changes the physical properties of an object, but does not create a new substance.

• Creates a new substance and cannot be undone.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Is this an example of a physical or chemical change?

• Physical

• Chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Is this an example of a physical or chemical change?

• Physical

• Chemical

Tags

NGSS.5-PS1-4