Matter Lessons 6-9 Jan 2014 Flashcards
0
Q
Freeze
A
To change from a liquid to a solid by cooling
1
Q
What is density?
A
How heavy something is for its size
2
Q
______________ is when something changes from a solid to a liquid by ________________.
A
Melting
Heating
3
Q
What is the process of a liquid changing into an invisible gas?
A
Evaporation
4
Q
What is the process of a gas changing into a liquid when the gas is cooled?
A
Condensation
5
Q
What is water vapor?
A
The state of water when it is an invisible gas
6
Q
What is the part of a liquid that is exposed to air called?
A
Surface Area
