Melting and Boiling

Phase changes are examples of ... changes

• chemical

• biological

• physical

Tags

NGSS.MS-PS1-4

Physical changes can be reversed by adding or removing energy.

• true

• false

Tags

NGSS.MS-PS1-4

What is happening at the boiling point?

• liquid to gas

• solid to liquid

• gas to liquid

• liquid to solid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

This picture shows the particles of ..........

• gas

• liquid

• solid

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-PS3-4

The temperature at which a substance changes states from a solid to a liquid

• Freezing point

• Melting point

• Evaporation

• Condensation

Tags

NGSS.MS-PS1-4

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

• melting point
• freezing point
• boiling point
• density

Tags

NGSS.MS-PS1-4

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

The boiling point is the temperature at which a substance changes from a liquid to a gas.

• false

• true

Tags

NGSS.MS-PS1-4

All substances have the same melting and boiling points

• false

• true

Tags

NGSS.MS-PS1-4