Phase Change II

If you have a liquid that changes to a gas, explain it's freedom of movement in both phases.

• molecules move away from each other, then around each other
• molecules move in place, then around each other
• molecules move around each other, then away from each other
• molecules move around each other, then in place

Tags

NGSS.MS-PS1-4

If molecules in a substance move in place and energy is transferred into the substance

• then molecules move slower, and it will be a solid
• then molecules will move faster, and it will be a liquid
• then molecules will move faster, and it will be a solid
• then molecules will move slower, and it will be a liquid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Before: molecules move around each other, After: molecules move in place

• Before, the substance was a solid and later a liquid.
• Before,the substance was a gas, and later a liquid.
• Before, the substance was a liquid and later a solid.
• Before,the substance was a liquid, and later a gas.

Tags

NGSS.MS-PS1-4

If energy is taken out of the substance, and the substance changed into a liquid,

• the substance started as a solid
• the substance started as a liquid
• the substance stayed the same
• the substance started as a gas

Tags

NGSS.MS-PS1-4

7. All phase changes (changing states) requires energy to be added or taken away.

• True
• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What happens to particles when they are heated?

• They speed up and spread out
• They slow down and compress
• They stop moving
• They move closer together and speed up

Tags

NGSS.MS-PS1-4

How are solids different from liquids?

• particles in solids are moving freely around each other.
• particles in solids have no motion.
• particles in solids are vibrating in place.
• particles in solids have more motion than in liquids

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When the temperature of matter decreases the particles ...

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

Tags

NGSS.MS-PS1-4

Molecules are closest together in a 

• Solid
• Liquid
• Gas

Tags

NGSS.MS-PS1-4

Suppose you pour a glass of ice water and set it on the kitchen table. After a few minutes, the outside of the glass will be covered with drops of water. Why did this happen?

• Oxygen in the air cooled and condensed onto the cold glass.

• Water vapor in the air cooled and condensed onto the cold glass.

• Water vapor in the air cooled and evaporated onto the cold glass.

• Water seeped through pores in the glass.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5