Science 12.5

The melting point of a substance is the ____________ at which it changes from solid to liquid.

• melting 
• phase
• temperature
• point

The ________   ________ of a substance is the temperature at which it changes from liquid to solid. 

• phase change
• solidification stage
• freezing point
• Melting point

The freezing and melting of water happens at ___________

• 0°C (32°F). 
• 0 degrees
• -32 degrees
• 32 degrees

When a solid melts into a liquid, it undergoes a

• freezing point 
• melting point 
• stage change
•  physical change.

 When temperature is increased to the melting point of a solid, it will change into a liquid. If the temperature is increased even more, the liquid will change into a 

• gas
• vapor
• liquid
• lethal liquid

In which state of matter are molecules moving the slowest?

• solid
• liquid
• gas
• all of the above

Which of the following terms identifies the change from a liquid to solid?

• Melting
• Condensation
• Vaporization
• Freezing

No Definite Shape and No Definite Volume

• Gas
• Liquid
• Solid

No definite shape, but has a definite volume

• Gas
• Liquid
• Solid

Phase change from a solid to a gas.

• sublimation
• deposition
• condensation
• evaporation