The 6th grade physical science stuff we need to know.
lead
Pb
sulfur
S
Hydrogen
H
carbon
C
helium
He
Oxygen
O
nitrogen
N
sodium
Na
Florine
F
chlorine
Cl
iron
Fe
silicon
Si
nickel
Ni
neon
Ne
calcium
Ca
gold
Au
silver
Ag
aluminum
Al
copper
Cu
zinc
Zn
atom
The basic unit of a chemical element, consisting of a nucleus surrounded by electrons.
element
A substance that cannot be broken down into simpler substances by chemical means, consisting of atoms with the same number of protons.
molecule
A group of two or more atoms bonded together
compound element
made up of two or more types of atoms (elements)
matter
anything that has mass, or volume.
mass
The measure of how much matter an object is made of
weight
The force of gravity on an object
volume
An amount of space an object takes up
density
A property of representing the mass per unit volume
solid
The state of matter with a fixed volume and shape
liquid
The state of matter that has a definite volume but not a definite shape.
gas
The state of matter that does not have a definite volume or shape
freezing
The change of state from a liquid to a solid
melting
The change of state from a solid to a liquid
boiling
The change of state from a liquid to a gas that occurs at a specific temperature
evaporation
The change of state from a liquid to a gas
condensation
The change of state from a gas to a liquid
deposition
The change of state from gas to solid
sublimation
The change of state from a solid directly to a gas.
Mixture
a combination of two or more substances that do not combine chemically. The substances can be physically separated.
plasma
a form of matter that is like gas, but electrically charged.
chemical change
a change in matter that produces one or more new substances
physical property
A characteristic of a substance that does not change the identity of the substance, such as density, color, or hardness.
At what temp. will water freeze?
0 Celsius 32 Fahrenheit
At what temp does water boil?
100 Celsius 212 Fahrenheit