Melting and Freezing

Which choice defines the freezing point?

• The temperature at which a substance changes its state from a liquid to a gas

• The temperature at which a substance changes its state from a solid to a liquid

• The temperature at which a substance changes its state from a liquid to a solid

• The temperature at which a substance changes its state from a gas to a liquid

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NGSS.MS-PS1-4

The temperature at which a substance changes its state from a solid to a liquid is...

• Freezing point

• Melting point

• Evaporation

• Condensation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is this picture showing?

• Melting

• Freezing

• Condensation

• All of the above

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Look at this picture. Can this melt?

• Yes

• No

• Maybe

• Never

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is an example of melting?

• Water turning into ice

• chocolate bar turning into liquid chocolate

• fog forming on a mirror

• water boiling

Tags

NGSS.MS-PS1-4

Does butter melt?

• Yes

• No

• None of the above

• All of the above

Tags

NGSS.MS-PS1-4

What process happens when a liquid changes to a solid

• The freezing process

• Vaporization

• The boiling point

• It turns into a gas

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NGSS.MS-PS1-4

An object changes states from a liquid to a solid . It changes after the temperature gets colder . What is this called ?

• a gas

• a solid

• melting

• freezing

Tags

NGSS.MS-PS1-4

The melting point of Ice

• 25 degree Celsius

• 0 degree Celsius

• 39 degree Celsius

• 20 degree Celsius

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Do all matter have the same boiling, melting, and freezing points?

• Yes

• No

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4