the basic unit from which all matter is made

a substance that is made of only 1 kind of matter

a group of 2 or more atoms

a substance made of two or more elements

the measure of the mass of an object in a given volume

when the looks changes, but it does not change into something different

A change in matter that produces one or more new substances

2 or more substances that are not chemically bonded, but mixed together

when a solute is dissolved in a solvent

mixture where small undissolved parts do not settle and separate

when particles can be easily separated by settling or filtration

Energy is released when something that is warm gets cooler

Energy is absorbed when something starts cool and gets warmer

any materials that are made by humans

anything that can be found naturally in the world that humans use

What the reactants form when they undergo a chemical change

The substances that undergo chemical changes

any mixture where you can see the different parts of the mixture and separate them easily.

any mixture that looks the same all the way through