melting point and freezing point

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

• melting point
• freezing point
• boiling point
• density

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

• melting point
• freezing point
• boiling point
• density

Melting Point of pure water is

• 100 degrees Celsius
• 0 degrees Celsius
• 0 degrees Fahrenheit

To determine the freezing and melting points use a 

• thermometer
• scale
• balance

The temperature when a solid changes to a liquid - 

• melting point
• freezing point
• boiling point

What is the boiling point of water

• 0 C
• 100 F
• 50 C
• 100 C

What is happening at the boiling point?

• liquid to gas
• gas to liquid
• solid to liquid
• liquid to solid

What is happening at water melting point?

• liquid to gas
• solid to liquid
• gas to liquid
• liquid to soild

When does evaporation happen?

• gas to liquid
• liquid to solid
• solid to liquid
• liquid to gas

If the temperature is below the melting point of a substance and below the boiling point of a substance what state will it be in?

• Solid

• Liquid

• Gas