Vocabulary
Solids
Liquids
Gases
Molecules
100
This word means anything that has mass and takes up space.
What is matter?
100
Describe the shape and volume of a solid.
Definite shape and definite volume.
100
Describe the shape and volume of a liquid.
No definite shape, but definite volume.
100
Describe the shape and volume of a gas.
No definite shape or volume.
100
This is another word that you could use to describe a molecule.
What is a particle?
200
Name five properties of the front marker board.
What is __________.
200
How are molecules in a solid arranged?
They are tightly packed.
200
What happens to the shape of a liquid when it is placed in a container?
It takes the shape of the container.
200
What happens to a gas that is trapped in a container?
It moves to all parts of the container.
200
Describe what happens to molecules when they are heated.
They move faster and farther apart.
300
You need this to change phases of matter.
What is energy?
300
Can particles in a solid move at all?
Yes, but they don't move past each other, they only vibrate.
300
Do particles in a liquid move at all?
Yes, they slide past one another.
300
How do molecules in a gas act?
They can expand without limit.
300
Describe what happens to molecules when they are cooled.
They slow down and move closer together.
400
This substance has molecules that are closer together and more tightly packed. This substance holds it's shape.
What is a solid?
400
Describe what happens to the molecules in a piece of paper if I tear the paper in half.
Nothing. Some go with the one half, and some go with the other.
400
Describe how molecules in a liquid are arranged.
Close together, but held loosely.
400
Describe how molecules in a gas are arranged.
Very loosely. A gas has no definite shape.
400
When molecules move farther apart, what happens to the forces that hold them together?
They grow weaker.
500
While weight depends on this, mass does not.
What is gravity?
500
If you added this to a solid, the molecules would spread apart or melt.
What is heat?
500
If you do this to a liquid, the molecules would get closer together or slow down.
What is freeze the liquid?
500
This is water in the gas phase.
What is water vapor?
500
When molecules move closer together, what happens to the forces that hold them together?
The forces strengthen.
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