General Properties of Matter

Everything in the universe is made of either energy or matter.

Matter and energy can not be created or destroyed, but they can be converted from one to the other.

Matter is anything that has mass, volume and inertia.

mass
the amount of matter present in an object.
weight
the measure of the pull of gravity on an object.
volume
the amount of space an object takes up.
inertia
the resistance an object has to changes in its motion.
density
the mass/volume ratio of a piece of matter.