Phase Change - Amplify Chapter 1

Front

What is a phase change?

Back

A phase change is a transition of matter from one state (solid, liquid, gas) to another due to changes in temperature or pressure.

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Front

What happens to molecules during melting?

Back

During melting, molecules gain energy and move from a fixed position in a solid to a more free-moving state in a liquid.

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Front

What is the solid phase characterized by?

Back

The solid phase is characterized by closely packed molecules that vibrate in place and have a definite shape and volume.

Front

What is the liquid phase characterized by?

Back

The liquid phase is characterized by molecules that are close together but can move past one another, allowing liquids to take the shape of their container.

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NGSS.MS-PS1-4

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Front

What is the gas phase characterized by?

Back

The gas phase is characterized by widely spaced molecules that move freely and quickly, filling the entire volume of their container.

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NGSS.MS-PS1-4

Front

What is condensation?

Back

Condensation is the phase change from gas to liquid, occurring when gas molecules lose energy and come closer together.

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NGSS.MS-PS1-4

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Front

What is freezing?

Back

Freezing is the phase change from liquid to solid, occurring when liquid molecules lose energy and arrange into a fixed structure.

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NGSS.MS-PS1-4

Front

What is evaporation?

Back

Evaporation is the process where liquid molecules gain enough energy to become gas, occurring at the surface of the liquid.

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NGSS.MS-ESS2-4

NGSS.MS-PS1-4

Front

What is sublimation?

Back

Sublimation is the phase change from solid directly to gas without passing through the liquid phase, often seen in dry ice.

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NGSS.MS-PS1-4

Front

What is deposition?

Back

Deposition is the phase change from gas directly to solid, bypassing the liquid phase, as seen in frost formation.

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NGSS.MS-PS1-4