Show:
Solids, Liquids & Gases
Adding or removing heat
Phase Changes
Conservation
of Mass
100
Has a definite volume but not a definate 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 is...

Matter

100

Increasing or decreasing temperature can change... 

The state of matter
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
Phase change of a solid turning into a gas
What is sublimation?
200

Phase changes are when a substance changes from one state of matter to another because of the addition or removal of...

Heat

200

Kinetic energy is...

then energy of motion
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
Change from a liquid to a solid
What is freezing?
300

What is the Law of Conservation of mass?

Mass cannot be created or destroyed
300

What are all molecules always in a constant state of?

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 gas turning into a liquid
What is condensation?
400

How many Oxygen atoms are in H2O?

1

400

What happens when an object's kinetic energy increases?

The particles move faster

500

An unusual state of matter found in neon signs and the sun

What is plasma?

500

the theory that all matter is made up of particles that are always moving

What is the kinetic molecular theory? 

500
When heat is added to a liquid and becomes a gas.
What is evaporation?
500

How many Hydrogen atoms are in CH4

4

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