Melting and boiling points

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 water is

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

Freezing point of water is

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

The freezing and melting points of water are the same.

• True
• False

To determine the freezing and melting points use a 

• thermometer
• scale
• balance

What is the boiling point of water

• 0 C
• 100 F
• 50 C
• 100 C

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

A substance has a melting point of 25 ^oC and a boiling point of 235 ^oC. What state is it at 5^oC?

• Solid

• Liquid

• Gas

A substance has a melting point of -125 ^oC and a boiling point of -35 ^oC. What state is it at 15^oC?

• Solid

• Liquid

• Gas