Changes in Matter

A chemical property ....

• is observed with the senses

• indicates how a substance reacts with something else

• is measured

• is determined without destroying the object.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

What is burning an example of?

• physical change
• physical property
• chemical change
• chemical property

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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

When you break a cracker into pieces it is a 

• Chemical change
• Physical change
• Chemical Weathering
• Physical Weathering

Milk sours (goes bad)

• physical change
• chemical change
• physical property
• chemical property

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Salt dissolving in water is an example of what?

• A physical change
• A chemical change
• A physical property
• A chemical property

Which of the following examples shows that a chemical reaction has occurred? 

• A rock breaks into smaller pieces when it is struck with a hammer.
• Rust forms on a hammer that has been left outside to long. 
• A cup of water turns pink when a few drops of red food coloring are added. 
• A solid is formed when heat is removed from a sample of water. 

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Four students performed four different investigations by combining different substances. Their results are shown in the table provided. In which experiment are new substances being formed?

• Experiment 1
• Experiment 2
• Experiment 3
• Experiment 4

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A cube of ice is crushed then melted.

• physical changes only

• chemical changes only

• both physical and chemical changes occur

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Vinegar and baking soda react to form a gas

• physical change

• chemical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5