Boiling and Freezing Points

What is happening at freezing point?

• gas to liquid

• liquid to solid

• solid to liquid

• liquid to gas

Tags

NGSS.MS-PS1-4

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

• Yes

• No

Tags

NGSS.MS-PS1-4

The teacher heats a pot of water. Once the water reaches 100°C, which point has the water reached?

• Freezing

• Boiling

• Melting

• Evaporation

Tags

NGSS.MS-PS1-4

Which of this can water be turned into

• liquid

• solid

• gas

• all of the above

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

At what temperature in degrees Celsius does water freeze?

• 150

• 0

• 200

• 32

A student observed a liquid that boiled at 100°C. What type of liquid was boiling?

• Salt water

• Sugar water

• Pure water

• Lemon water

Tags

NGSS.MS-PS1-4

If water is left to boil, what statement is not true?

• All the water will eventually evaporate.

• The temperature of the water will eventually reach 200°C.

• The temperature of the water will remain at 100°C until it evaporates.

• The beaker with only 100 mL of water will boil away faster than the beaker with 200 mL of water.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When a liquid reaches the temperatures of its ___, it can become a gas.

• melting point

• freezing point

• boiling point

• density

Tags

NGSS.MS-PS1-4

What is happening at the boiling point?

• liquid to gas

• gas to liquid

• solid to liquid

• liquid to solid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

What is the boiling point of water at standard atmospheric pressure?

• 0°C

• 50°C

• 100°C

• 150°C