Unit 2 Review Part 1

When the temperature of matter increases the particles...

• speed up and move closer
• speed up and move farther apart
• slow down and move closer together
• slow down and move farther apart

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

All matter is made of what?

• energy 
• atoms 
• electrons 
• compounds 

Tags

NGSS.MS-PS1-1

Wood that is burning in a brush pile has heat, and produces ashes.

• Physical

• Chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Is milk going sour a physical or chemical change?

• Physical

• Chemical

Tags

NGSS.MS-PS1-2

Is freezing juice a physical or chemical change?

• Physical Change
• Chemical Change

Tags

NGSS.MS-PS1-4

Why is this a physical change?

• The shape of the clay has been changed.
• The clay can be put back into a ball shape instead of a birthday cake.
• The clays has not changed chemically.
• All are true

Tags

NGSS.MS-PS1-2

An example of a physical property would be?

• Rust on a nail
• Salt dissolved in water.
• Wood burning
• An egg frying

What happened to change the state of the butter?

• More energy was added.
• Heat was taken away.
• More chemicals were added.
• The particles of the butter slowed down.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following is a physical change?

• Dissolving

• Rapid release of heat

• Fizzing (release of gas)

• Rusting

When you increase the energy by heating a liquid what happens to the motion of the molecules

• They slow down

• They speed up

• Heat doesnt change the motion of the molecules

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4