Solids, Liquids, and Gases
Has a definite volume but not a definite shape
What is a liquid?
When a liquid is cooled it becomes what?
A solid
Phase change of a solid turning into a liquid
Melting
Anything that has mass and takes up space
Matter
All molecules are in constant state of what?
Motion
Has a definite shape and volume
What is a solid?
When heat is added to a liquid it becomes what?
A gas
Phase change of a solid turning into a gas
Sublimation
A group of atoms held together by chemical bonds
Molecules
What happens when an object's kinetic energy increases?
Particles move faster
In what state do molecules move extremely quickly and by bouncing off each other
What is a gas?
When you remove heat from a gas it becomes what?
A liquid
Change from a liquid to a solid
Freezing
What is needed to change matter from one state to another
Heat
The average kinetic energy of the individual particles in a substance
Temperature
Another name for the states of matter
What are phases of matter?
What must happen for matter to change states?
Add or Remove heat/energy
Phase change of a gas turning into a liquid
Condensation
The amount of space taken up by the object
Volume
Matter that takes that flows to the bottom of its container
Liquid
An unusual state of matter found in neon signs
What is plasma?
As the energy of a substance increases, so does this
Temperature
When heat is added to a liquid and becomes a gas
Evaporation
All phase changes are what kind of change?
Physical changes
In this phases of matter, the molecules move sliding past one another
Liquid