Solids, Liquids & Gases
Adding or removing heat
Phase Changes
Properties of Matter
Physical and Chemical Changes
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
What is matter?
100
A tarnished silver plate is known as a ______ change.
What is a chemical change
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
A property of matter that refers to something floating is called?
What is buoyancy.
200
A reversible change is also a _________ change.
What is a physical change.
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
This refers to how tightly molecules are packed together.
What is density.
300
When a new substance has formed it is known as a ________ change
What is chemical change
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 much space an object takes up is its...?
What is its volume
400
A __________ change refers to a change in size, shape, or state.
What is a physical change.
500
What state of matter has a definite volume and definite shape
What is a solid
500
When a liquid is heated the molecules move _______.
What is faster
500
When heat is added to a liquid and becomes a gas.
What is evaporation?
500
What is the he weight of an object called?
What is its mass
500
A bicycle rusting is an example of a ________ change.
What is a chemical change.
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