Solids
Liquids
Gas
Changes of state
100
What are the two types of solids?
amorphous and crystalline
100
Give an example of a liquid
Water, milk, soda, latte, hot chocolate, tea, milkshake
100
How do you describe a gas?
A gas is a fluid that has no definite shape or volume
100
What is it called when a liquid turns into a solid?
Freezing
200
Describe crystalline solids
They are made up of crystals and they melt at a distinct temperature
200
Give the definition of a liquid
A liquid has a definite volume but not a definite shape.
200
Why does it have no shape or volume?
As the particles move, they spread apart, filling all the space available.
200
What is it called when a gas turns into a solid?
Deposition
300
What are amorphous solids?
They do not melt at a distinct temperature
300
Why does liquid have a definite shape but not a definite volume?
Its particles are able to move freely and wherever they please
300
Are the particles in gas very fast moving and spread out? Or are they pressed together and slow?
They are spread out and very fast moving
300
What is it called when a solid turns into a liquid?
Melting
400
List 2 types of each type of solid.
crystalline - snow, salt, sugar amorphous - butter, ice cream, glass, plastic
400
What is another name for a liquid?
A fluid.
400
Are gas particles faster or slower than liquid particles? Why?
They are faster because as gas particles move they spread apart, filling all the space available.
400
What are the two types of vaporization?
Boiling and evaporation
500
Would ice cream be an example of a crystalline solid?
No, it is amorphous solid because it does not melt at a distinct temperature it just becomes softer and softer the longer you leave it out
500
What does the phrase "fluid" mean?
A "substance that flows".
500
What is the equation for pressure?
force divided by area P = F/A
500
List two examples of plasma. (plasma ball dosen't count)
Lightning, fire
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