Atoms & Elements
Smallest piece of matter that maintains the properties of that matter.
atom
State of matter that has a definite shape and a definite volume.
solid
What must you add to matter to increase it's energy?
heat
Amount of matter in an object.
mass
When a substance loses energy, it cools and the particles ________.
contract
A substance composed of only one type of atom.
Element
State of matter that has a definite volume, but no definite shape.
liquid
When matter goes from one state to another.
Amount of space an object takes up.
volume
When a substance gains energy, the particles heat up and _______.
expand
An element cannot be broken down into a simpler substance because it is a _______ substance.
pure
State of matter that does not have a definite volume or shape.
The process when a solid turns into a gas.
The temperature at which a liquid becomes a solid.
freezing point
What subatomic particles are found in the nucleus of an atom?
protons & neutrons
When two or more atoms bond together they form a:
molecule
Super hot, electrically charged particles.
plasma
Water boils at what temperature? (give in celsius AND fahrenheit)
100oC
212oF
Amount of matter in a given space.
density
How can you remove energy from matter?
Protons, neutrons and electrons are the _______ particles that make up the atom.
subatomic
Which state(s) of matter can flow?
liquid & gas
Water freezes at what temperature? (give in celsius AND fahrenheit)
0oC
32oF
A measure of one substance's ability to dissolve in a specific amount of another substance
solubility
An object's mass per unit volume is known as its what?
Density