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Particles
Phase changes
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100
How do the molecules of a gas behave?
They bounce around freely at high speeds.
100
Liquid ---> Solid =
freezing
100
Which state of matter can be compressed?
gas
100
Gas ---> Solid
Deposition
200
In which state of matter are the particles moving the least?
solid
200
The melting point of Water (H2O) is 0 degrees Celsius. This is the same temperature as its:
freezing point
200
What are the three main states of matter?
Solid, liquid, gas
200
_____________ Takes the shape of the container but has definite volume.
Liquid
300
Matter is anything that…
Has mass and takes up space.
300
What causes a change of state or a phase change?
+ heat or - heat
300
What is the easiest way to add energy to matter?
+ heat
300
What is the 4th state of matter?
plasma
400
In which state of matter are the particles moving the fastest?
gas
400
Solid ---> Liquid =
Melting
400
_____________ Has a definite shape and definite volume.
Solid
400
At what temperature does water boil? in Celsius or Fahrenheit.
100C or 212 F
500
Compared to ice, how do molecules of water behave?
faster, more freely.
500
What is it called when a solid turns directly into a gas?
Sublimation.
500
What do water vapor, liquid water, and ice have in common?
they all have the same chemical properties.
500
If you put a thermometer into a pot of melting ice, when will the temperature rise past zero?
When all the ice has melted.