Modeling Matter

What is an example of a physical change?

• baking a cake

• burning wood

• rusting metal

• solid dissolved in a liquid

What will the mass (weight) be before and after heating?

• the same

• it will decrease

• it will increase

• the water will evaporate

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5

NGSS.MS-PS3-4

What happens to particles in matter when it gets heated up?

• the particles slow down

• the particles disappear

• the particles remain in place

• the particles speed up

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Karley had a mixture of sand and shells from the beach. He wanted to get the mixture separated into two buckets, one for the sand and the other for the shells. He decided to use a screen or sieve to help him separate the mixture quickly. Which property is he using to help him separate the mixture?

• Property of smell

• Property of color

• Property of size

• Property of shape

Tags

NGSS.5-PS1-3

A chemistry class burned wood in a fume hood in their science laboratory to better understand how the materials would change when burned. Before conducting the experiment, the students measured the mass of the wood in the fume hood. After the experiment, the students measured the mass of the burned wood, the ashes, and the gases in the fume hood. Which graph best represents the mass of all of the materials before and after burning?

• 
• 
• 

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following questions was Pria likely asking in this investigation of an unknown substance? Choose the best response based only on the data in the table.

• What are the types of matter that make up this substance?

• What types of specific molecules is this substance made from?

• What types of atoms is this substance made from?

• What are the properties of this substance?

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

A chemical change is...

• a new substance has not been created

• there is a change in the properties

• usually can be reversed

• the temperature stays the same

Tags

NGSS.MS-PS1-2

Students mix an unknown white powder with an unknown clear solution. Select three observations that might indicate that a new substance is produced.

• Bubbles are produced

• All the powder dissolves

• The temperature increases

• The solution changes color

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

A physical change is when...

• a new substances was created

• can usually be reversed

• can not be reversed

• a new substance was not created

Terry pours 1 cup of liquid water into an ice tray and then puts it in the freezer to make ice. Which of the following statements about the liquid water and the ice is accurate?

• When the ice froze, it gained more water.

• When the ice froze, it had the same amount of water as it did when it was a liquid.

• When the ice froze, it had twice as much water as it did when it was a liquid.

• When the ice froze, it lost some water in the process.

Tags

NGSS.MS-PS1-4