A student left a sealed jar of water outside her home. Water can be a solid, liquid, or gas. When she put it outside, the water was a liquid. Twelve hours later, the water had changed phase and was a soldi. What happened to the water molecules?

Before the student left, the molecules were moving around each other . After, the molecules were moving in place .

Before the student left, the molecules were moving in place . After, the molecules were moving around each other .

Before the student left, the molecules were moving around each other . After, the molecules were moving away from each other .

Before the student left, the molecules were moving away from each other . After, the molecules were moving around each other.

Lily is doing a science experiment with a substance in a sealed jar. At first, the substance’s molecules are moving in place. What will happen to Lily’s substance if she transfers energy into the substance and causes a phase change? After the phase change, the substance’s molecules will move . . .

faster, and the substance will be a liquid.

faster, and the substance will be a gas.

slower, and the substance will be a solid.

slower, and the substance will be a liquid.

What happens to molecules when their kinetic energy decreases?

It depends on the type of molecules.

Jose's go cart is made of steel. When are the steel molecules in his go cart moving? The aluminum molecules are . . .

only moving when Jose is driving his go cart.

only moving when Jose is NOT driving his go cart.

Sam had a solid and added energy to it. What did the molecules look like?

The molecules moved around each other.

The molecules moved away from each other.

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

molecules move around each other, then away from each other

molecules move away from each other, then around each other

molecules move in place, then around each other

molecules move around each other, then in place

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

then molecules will move faster, and it will be a liquid

then molecules move slower, and it will be a solid

then molecules will move faster, and it will be a solid

then molecules will move slower, and it will be a liquid

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

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

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 gas.

You have dropped your popsicle and are watching it become a LIQUID. Which answer BEST explains what PHASE CHANGE has occurred AND how the molecule MOVEMENT has changed?

The PHASE CHANGE that has occurred is MELTNG and the molecule MOVEMENT has become FASTER.

The PHASE CHANGE that has occurred is CONDENSATION and the molecule MOVEMENT has become FASTER.

The PHASE CHANGE that has occurred is EVAPORATION and the molecule MOVEMENT has become SLOWER.

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

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

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 gas.

Observe the picture and select the correct answers. Liquid is the state of matter that and it has its own definite .

takes the shape of its container

Match the vocabulary word with the correct definition.

The different forms in which matter can be found

The state of matter that has a definite volume but no fixed shape (ex. water)

The state of matter that has a definite shape and volume. Their shape and volume cannot be easily changed. (ex. ice)

The state of matter that has no definite shape and take the shape of their container. (ex. water vapor)

Anything that has mass and takes up space. It cannot be created nor destroyed.

Phase Change Review Amplify Ch. 1 & 2

Phase Change Review - Amplify Ch. 1 & 2

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7th Grade

NGSS covered

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45 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

the change of a substance from a gas to a liquid

condensation

evaporation

freedom of movement

freezing

melting

Tags

NGSS.MS-PS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

the change of a substance from a liquid to a gas

evaporation

condensation

freedom of movement

freezing

melting

Tags

NGSS.MS-PS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

the way molecules in a substance move around relative to each other

freedom of movement

condensation

evaporation

freezing

melting

Tags

NGSS.MS-PS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

the change of a substance from a liquid to a solid

evaporation

condensation

freedom of movement

freezing

melting

Tags

NGSS.MS-PS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

a state of matter with no definite shape or volume

gas

condensation

evaporation

freedom of movement

Tags

NGSS.MS-PS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

the energy that an object has because it is moving

kinetic energy

atom

condensation

evaporation

freedom of movement

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

NGSS.MS-PS3-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

a state of matter that has no definite shape but has a definite volume.

liquid

atom

condensation

evaporation

freedom of movement

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

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Phase Change Review - Amplify Ch. 1 & 2

the change of a substance from a gas to a liquid

the change of a substance from a liquid to a gas

the way molecules in a substance move around relative to each other

the change of a substance from a liquid to a solid

a state of matter with no definite shape or volume

the energy that an object has because it is moving

a state of matter that has no definite shape but has a definite volume.

change of a substance from a solid to a liquid

a noticeably different form or state of the same substance

a state of matter that has a definite shape

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