a measurable characteristic that describe the physical state of something (solid, liquid, gas), including mass, magnetism, temperature, density, shape, volume, and conductivity

a property or characteristic of a substance that is observed or measured during a reaction in which the chemical makeup or identity of the substance is changed

to identify groups of a similar thing

a physical property of a solid used to describe its surface; how rough or smooth something is

a measure of the amount of heat energy in an object; how hot or cold something is

the amount of space an object or substance occupies

the amount of matter a substance or object has

the measurement of how tightly a material is packed together; density is equal to mass per unit of volume

the form matter can take as either a solid, liquid, or gas

a state of matter with a definite volume and shape

a state of matter with a definite volume but no definite shape; it takes the shape of its container

a state of matter with no definite volume and shape

the process by which water is changed from a gas (water vapor) to a liquid

the process by which water is changed from a liquid to a gas (water vapor)

the gas form of water

a change of a substance from one form to another without a change in its chemical properties; for example, cutting, folding, breaking

a process by which substances are changed into different substances with different properties; for example rusting, burning, cooking

a response to something; for example, color change, temperature change, gas production

 a combination of two or more substances where each keeps its own properties and both can be easily separated

a liquid mixture where one substance is mixed evenly throughout another substance

the ability of a solid (the solute) to dissolve in a liquid (the solvent)

a mixture in which the ingredients are not spread out evenly; particles of one ingredient are suspended (floating) in another ingredient

a piece of metal that attracts objects with iron in them

attracted to a magnet because it contains iron

not attracted to a magnet because it does not contain iron

cause something to move closer; the electric or magnetic force of oppositely charged objects that pulls them toward each other

cause something to move away

the smallest unit of an element that maintains the properties of that element; the building blocks of all matter

a scientific theory of the nature of matter, which states that matter is made up of atoms

the tiny, very dense, positively charged region in the center of the atom; made up of protons and neutrons

a positively-charged particle of an atom

a particle of an atom that has no charge (neutral)

a negatively charged particle that orbits the nucleus

a pure substance made up of the same type of atom throughout

a pure substance made of two or more kinds of atoms bound together