Phd Science

If Kayla burns wood in a fire, this is a ____ change

• There is no change the wood is still wood
• A physical change the wood is just breaking down
• A chemical change the wood is becoming a new substance
• The fire actually is the thing that changes and it takes on a chemical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Anything that takes up space and has mass is called

• matter
• solid
• color
• atoms

Tags

NGSS.MS-PS1-5

Volume is the measure of how much space an object takes up

• True
• False

A chemical change is easy to reverse.

• True
• False
• What's a Chemical change?

Burning a match is an example of a

• Chemical change
• physical change
• fun thing to do

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

A solid is

• a substance that does not have a definite shape or volume
• a substance with a definite volume, but no definite shape
• a substance with a definite shape and volume
• a substance whose particles glide past one another

Which of these objects is an insulator?

• Copper Wire
• Paper Clip
• Steel Pole
• Rubber Gloves

In which of these are the particles farthest apart and have the largest motion?

• gas
• solid
• liquid
• matter

Tags

NGSS.MS-PS1-4

When chocolate melts, it undergoes a physical change. Why is this a physical change?

• Its change is caused by adding heat
• It changes from one state to another
• Its properties mostly stay the same
• It is still the same kind of matter

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Claire has salt, gravel, shampoo, and sugar. She stirs 15 g of each into 200 mL of water to create four different mixtures. She then tries to separate the water from each mixture by pouring the mixture through a tea strainer. Which mixture can Claire separate most easily with the strainer?

• salt and water

• sugar and water

• gravel and water

• shampoo and water

Tags

NGSS.MS-PS1-2