States of Matter and Changes of State

Gertrude is observing liquids at a birthday party. Some are sweet, some are hot, and some are sticky. If she could look at the particles of the liquids, which statement would be true?

• The particles are far apart and moving fast, with no shape.

• The particles may touch but they can flow past each other.

• The particles are in close contact and cannot move from their places.

• The particles have no arrangement.

Tags

NGSS.MS-PS1-4

Herbie notices that a spill on the kitchen floor was gone the next morning. The best description of what happened to the spill is

• It evaporated

• It sublimated.

• It boiled.

• It froze.

Tags

NGSS.MS-PS1-4

The change of state from a solid to a liquid is called

• freezing

• melting

• boiling

• evaporating

Tags

NGSS.MS-PS1-4

The change of state from a liquid to a gas is called

• boiling

• evaporation

• vaporization

• sublmiation

Tags

NGSS.MS-PS1-4

The change of state from a solid to a gas is called

• freezing

• melting

• boiling

• sublimation

Tags

NGSS.MS-PS1-4

The flat part of a graph showing the temperature of a liquid as it cools over a period of time indicates that

• a solid is changing to a liquid

• a liquid is changing to a solid

• a liquid is changing to a gas

• a gas is changing to a liquid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Herbie makes a graph of the temperature of a solid as he heats it. What shape will the graph have?

• A diagonal line that starts low and keeps going up the whole way.

• A diagonal line that starts low, has a flat portion, then goes up again.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

How are boiling and evaporating different?

• They both are processes that change a liquid to a gas.

• Boiling requires heat to be added so the particles rapidly change to a gas.

• Evaporating requires heat to be added so the particles rapidly change to a gas.

Tags

NGSS.MS-PS1-4

Which property is true of a crystalline solid?

• Its particles have a regular, repeated pattern.

• Its particles have no pattern.

• Its particles are spread out and can flow past each other.

• Its particles are so far apart, they can spread in a container.

Iodine gas particles can change directly to a solid when cooled. What is the name of this change of state?

• condensation

• deposition

• freezing

• plasma

Tags

NGSS.MS-PS1-4