A
B
C
D
E
100
What is the change state of matter from liquid to gas, both inside the liquid and on the surface?
Boiling
100
Free Point
Yay!
100
What is the change in state of matter from gas to liquid?
Condensation
100
What is the change of matter from liquid to gas, but only on the surface of the liquid?
Evaporation
100
Free Point
Yay!
200
Which state of matter has a fixed shape?
Solid
200
Which state of matter does not have a definite shape or volume?
Gas
200
Which state of matter takes the shape of its container?
Liquid
200
True or False: A material that slows heat transfer is known as an insulator.
True
200
Which type of heat transfer causes a hot iron to burn your hand if you touch it?
Conduction
300
If you were to leave an object in the sun, what causes it to get hot?
Radiation
300
The expansion of matter when heated is _______.
Thermal Expansion
300
What are some examples of conductors?
Metals like copper, aluminum, and silver.
300
Which scale has a freezing point of 0 degrees and a boiling point of 100 degrees?
Celsius
300
The physical change of state from one state to another is _______.
Change of state
400
Which state of matter does this image show? 
Solid
400
What is sublimation?
The scientific process where a substance transitions directly from a solid to a gas, bypassing the liquid phase.
400
True or false: Thermal energy that is transferred from matter at a higher temperature to matter at a lower temperature is called heat.
True
400
What happens when you add heat to an object?
The objects molecules gain thermal energy.
400
What state of matter does this image show?
Gas
500
What is the change in state of matter from liquid to solid?
Freezing
500
What is an example of sublimation?
Dry ice or freeze drying an object.
500
Which state of matter does this image show? 
Liquid
500
Explain what evaporation is.
The process where liquid water turns into gas (water vapor) when molecules gain enough energy to break free from the surface, typically driven by heat.
500
What is the change in state of matter from solid to liquid?
Melting