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What's the Matter?

science vocabulary 1-17

matter anything that has mass and takes up space
atom the smallest particle of an element
element A pure substance that cannot be broken down into any other substances; made up of only one type of atom
molecule Created when two or more atoms join together.
compound Created when two or more atoms of different elements join together
expand To get larger in size, volume or quantity; when atoms gain heat energy, they move faster and spread out
particles A very small piece of a part, a tiny portion or speck
thermal energy Heat energy; the motion of molecules in a substance
vibrate A rapid, back and forth motion
solid Particles are closely packed together and vibrate in place; has definite shape and volume
liquid Particles touch each other and are packed loosely together; has definite volume but NOT definite shape – take the shape of container
gas Particles have a lot of thermal energy and are in constant motion; has NO definite volume or shape – take the shape of container when closed; spread out indefinitely when container is not closed; low density
density How much mass is present per given volume; ___________ = mass divided by volume; g/cm3
solution groups of molecules that are mixed up in even distributions; solutes are dissolved into solvents to create a ____________________
solute a substance(usually a solid) that is dissolved into another substance
solvent a substance(usually a liquid) that does the dissolving in a solution
solubility The ability of one substance (solute) to dissolve in another substance (solvent)
Created by: lcochrane