A measure of the amount of matter in an object
Mass
The state of matter that does not have a definite volume or shape
Gas
A substance that cannot be broken down into simpler substances by chemical means
Element
The energy of an object that is due to an object’s motion
Kinetic Energy
The amount of space an object takes up
Volume
The change of state from a solid to a liquid
Melting
A group of atoms that are held together by chemical forces; a molecule is the smallest unit of a compound that keeps all the properties of that compound
Molecule
The energy that an object has because of the position, condition, or chemical composition of the object
Potential Energy
The ratio of the mass of a substance to the volume of a substance
Density
The change of state from a liquid to a solid
Freezing
A substance made up of atoms of two or more different elements joined by chemical bonds
Compound
An object’s change in position relative to a reference point
Motion
The state of matter in which the volume and shape of the substance are fixed
Solid
The change of state from a liquid to a gas that usually occurs at the surface of a liquid over a wide range of temperatures
Evaporation
A combination of two or more substances that are not chemically combined
Mixture
The change of state from a liquid to a gas that occurs at a specific temperature
The state of matter that has a definite volume but not a definite shape
Liquid
The change of state from a gas to a liquid
Condensation
A sample of matter, either a single element or a single compound, that has definite/fixed chemical and physical properties
Pure Substance
Anything that has mass and takes up space
Matter
The distance traveled divided by the time interval during which the change in motion occurred
Speed