States of Matter
A single kind of matter that always has a specific makeup, or composition
substance
The change of state from a solid to a liquid.
melting
The three different states of matter.
solid, liquid and gas
Anything that has mass and takes up space
matter
The amount of matter in an object.
mass
The number of oxygen atoms in the molecule H2O
one
Substances that are made up of only one type of atom
elements
The temperature at which a substance changes from a liquid to a solid.
freezing point
In this state of matter particles are fixed in place and can only vibrate
solid
Characteristics that describe something's ability to change into something new.
chemical property
The amount of space that matter takes up.
volume
This happens to water's density as it approaches freezing
it decreases
Two or more substances in the same place, but their atoms are not chemically bonded
mixture
The change of state from a solid directly to a gas.
sublimation
The particles of this state touch but can move past each other like marbles in your hand
liquid
A group of two or more different atoms held together by chemical bonds.
compound
The measure of the mass of a material in a given volume ... g/mL
density
This is the number of atoms needed to make one molecule of water
3
Burning is this type of change
chemical
Two types of vaporization.
boiling & evaporation
Since these two states of matter can flow they are called fluids
liquids and gases
It states that matter is neither created nor destroyed
The law of conservation of matter
The technique used to find the density of a solid, irregularly-shaped object.
displacement method
This is a method used to separate two liquids by boiling them
distillation
This term describes how easily a substance dissolves in another substance
solubility
The total kinetic and potential energy of all the particles in an object.
thermal energy
The particles of this type of solid are NOT arranged in a regular pattern
amorphous solid
Icicles melting from a rooftop are this type of change
physical change
A measure of the force of gravity on an object.
weight
This happens to the speed of water's particles as it freezes
slow down
The particles of this state of matter are widely-spaced and collide with each other
gas
This is the main cause of any change in state
gaining or losing thermal energy
This unit of measurement is used to measure mass
grams or kilograms
These two types of energy are released when something burns
light and heat
Its unit of measurement is given in mL or cm3
volume
When we want to boil water, this resists the change
atmospheric pressure