Phase Change REVIEW

When ice cubes melt, heat energy _______ .

• increases

• deceases

• stays the same

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

After placing an ice cube in a jar and covering it with a tight-fitting lid, you determine its mass to be 100 grams. By the next day, the ice cube melted to water. Do you think the mass of the jar, lid and water will...

• increase to 200 grams.

• decrease to 50 grams.

• stay the same at 100 grams.

• decrease to 0 grams.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which phase change is demonstrated in this image?

• Condensation

• Vaporization

• Freezing

• Sublimation

Tags

NGSS.MS-PS1-4

The Kinetic Molecular Theory states that all of the particles that make up matter are _______________ in motion.

• never

• sometimes

• constantly

• none of the above

When a substance changes from a liquid to a solid, which of the following is TRUE?

• The molecules of the liquid stop moving completely when the substance becomes a solid.

• The soft molecules of the liquid change to hard molecules of the solid when the substance becomes a solid.

• The molecules of the substance attract more strongly to one another when the substance becomes solid.

Tags

NGSS.MS-PS1-4

You wash your clothes and hang them on a clothesline on a bright summer day. After a few hours the clothes are dry. What happened to the water molecules in the clothes?

• The water molecules were destroyed by the sunlight and no longer exist.

• The water molecules were absorbed and became part of the jeans.

• The water molecules broke apart into hydrogen and oxygen atoms.

• The water molecules moved faster and became water vapor.

Tags

NGSS.MS-PS1-4

The Law of Conservation of Mass explains that matter ___________ be created or destroyed.

• can

• cannot

Tags

NGSS.MS-PS1-5

When heat is removed from a substance, its molecules move __________.

• at the same speed

• faster

• slower

• farther apart

Tags

NGSS.MS-PS1-4

Why did the water form on the inside of this window?

• Warm water vapor in the air loses energy to the cold window

• The cold rain particles from outside are squeezing through the window, and deposited on the inside

• Water vapor from outside is evaporating directly through the window onto the inside of the window

• Water vapor in the air gains energy, and becomes liquid water on the inside of the window

Tags

NGSS.MS-PS1-4

During condensation, heat is _______ in the form of thermal energy.

• added

• removed

• constant

Tags

NGSS.MS-PS1-4