Anything that has mass and takes up space.
Matter
Any property of a substance that can be observed without changing the identity of the substance.
Physical Property
How much space an object or substance takes up (its volume) in relation to the amount of matter in that object or substance (its mass).
Density
Very small unit that makes up matter.
Particle
A property that is observed when a substance undergoes a chemical change.
Chemical Property
The ability to sustain a fire
Flammability
State of matter with no definite shape or volume, and particles that are very spread out
Gas
The ability of a substance to be flattened
Malleability
The ability of a substance to interact chemically with a second substance
Reactivity
An increase in the volume of a substance while its mass remains the same
Expand
The ability of a substance to be dissolved into another substance
Solubility
The ability of a material to conduct electricity
Conductor
A decrease in the volume of a substance while its mass remains the same
Contract
The ability of a substance to undergo a chemical reaction with another substance
Reactivity
Materials that do not allow electricity to pass through them
Insulator