Chapter 3 Section 3

A __________ is a reversible physical change that occurs when a substance changes from one state of matter to another.

• Science
• Phase Change
• Physical Change
• Evaporation

When at least 2 states of matter of the same substance are present, scientists describe this as a(n) ____.

• Phase
• Change
• Observation
• State of matter

Melting, freezing, vaporization, condensation, sublimation, and deposition are 6 common phase changes.

• True
• False

The temperature of a substance DOES change during a phase change.

• False
• True

_____ is either absorbed or released in a phase change.

• Air
• Heat
• None of the above
• Energy

What is another term for fusion? 

• Compressing
• Heating 
• Melting
• None of the above

During an endothermic change, the system absorbs energy from its surroundings.

• True
• False

During an exothermic change, the system releases energy to its surroundings.

• False
• True

The arrangement of molecules in water become less orderly when _____ and more orderly when ______.

• Freezing; melting
• Melting; freezing
• Closer; farther
• Bigger; smaller

When a substance changes from a liquid to a gas, it is called _____.

• Precipitation 
• Condensation
• Evaporation
• Vaporization