Heat Energy & Phase Changes

Molecules with MORE heat energy are...

• spread further apart

• packed tightly together

Tags

NGSS.MS-PS1-4

Molecules in a COLD substance are...

• moving quickly all around

• vibrating in place

Tags

NGSS.MS-PS1-4

Which diagram correctly labels the phases of the molecules?

(Hint: SOLID on top or GAS on top?)

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• 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which diagram correctly labels the phases of the molecules?

(Hint: FASTEST on top or SLOWEST on top?)

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• 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which diagram correctly labels the phases of the molecules?

(Hint: MOST heat on top or LEAST heat on top?)

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• 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which arrow correctly shows the direction of GAINING heat?

(Hint: up or down?)

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• 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which arrow correctly shows the direction of LOSING heat?

(Hint: up or down?)

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• 

Tags

NGSS.MS-PS1-4

This arrow shows a substance changing...

• FROM solid TO liquid

• FROM liquid TO solid

Tags

NGSS.MS-PS1-4

The process of changing from solid to liquid is called...

• melting

• freezing

Tags

NGSS.MS-PS1-4

When a substance melts it...

• gains heat

• loses heat

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4