Unit 2 LS quiz practice

What happens to temperature during a phase change?

• It increases
• It decreases
• It remains constant until the change is completed
• It increases and then quickly decreases

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A substance that contains only one type of atom is a(n) and it cannot further breakdown

• compound
• element
• heterogeneous mixture
• homogeneous mixture

Which of these is a pure substance?

• bread
• table salt
• garden soil
• sea water

Two or more elements chemically combined:

• an atom
• a compound
• a mixture
• a pure substance

Tags

NGSS.MS-PS1-1

A mixture that appears to be evenly mixed (uniform) throughout:

• an atom
• a compound
• a homogeneous mixture
• a heterogeneous mixture

A material made up of 2 or more substances that can be easily separated by physical means is a ___?

• compound
• colloid
• mixture
• solution

What term describes a gas changing to a liquid?

• Deposition
• Sublimation
• Evaporation
• Condensation

Tags

NGSS.MS-PS1-4

Solids melt when solid particles _____ energy, liquids freeze when liquid particles _____ energy.

• absorb, release
• release, absorb
• absorb, absorb
• release, release

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What term describes a liquid changing to a gas?

• Deposition
• Sublimation
• Freezing
• Evaporation

Tags

NGSS.MS-PS1-4

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