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Solids, Liquids & Gases
Adding or removing heat
Phase Changes
Vocabulary
Random
100

Has a definite volume but not a definite shape

What is a liquid?

100
When a liquid is cooled it becomes what?
What is a solid?
100
Phase change of a solid turning into a liquid
What is melting?
100
Anything that has mass and takes up space
What is matter?
100
When energy is transferred between objects without them touching. 

What is radiation?

200
Has a definite shape and volume
What is a solid?
200
When heat is added to a liquid it becomes what?
What is a gas?
200

Change from a liquid to a solid

What is freezing?

200
A group of atoms held together by chemical bonds
What are molecules?
200

As a solid turns to a liquid, what happens to the thermal energy.

What is increases?

300
In what state do molecules move extremely quickly and by bouncing off each other
What is a gas?
300
When a gas is cooled it becomes a what?
What is a liquid?
300

Phase change of a gas turning into a liquid

What is condensation?

300

The total sum of all kinetic energy in a substance

What is thermal energy?

300
What are all molecules always in a constant state of?
What is motion?
400
Another name for the states of matter
What are phases of matter?
400
What must happen for matter to change states?
What is it must gain or lose energy?
400

Phase change of a solid turning into a gas

What is sublimation?

400

An object that keeps heat from entering or exiting something. 

What is an insulator?

400

What happens when an object's kinetic energy increases?

The particles move faster and the substance expands

500

The most common state of matter in outer space.

What is plasma?

500

A sudden decrease of internal pressure can cause an object to ______.

What is implode?

500

When a gas turns directly into a solid

What is deposition?

500

The process on Earth where something of high concentration or energy transfers to something of low concentration or energy. 

What is diffusion?

500
The average kinetic energy of the individual particles in a substance.
What is temperature?