| A | B |
|---|
| matter | anything that has mass and takes up space |
| atom | the smallest unit of an element that maintains the properties of that element |
| pure substance | a sample of matter (single element or compound) that has definate chemical and physical properties |
| element | a substqance that cannot be seperated or broken down into simpler substances |
| compound | a substance made up of atoms of two or more different elements joined by chemical bonds |
| mixture | a combo between two or more substances that are NOT chemically combined |
| solution | a homogeneous mixture that appears to be a single substance |
| volume | a measure of the size of a body or region in 3-D space |
| density | the ratio of mass of a substance to the volume of the substance (d=m/v) |
| malleable | the ability to be rolled into thin sheets |
| conductivity | the ability to conduct electrical current |
| boiling point | that temperature at which a substance boils |
| chemical property | the ability to act in chemical reactions |
| flammibility | the ability to burn |
| law of conservation of mass | states that mass can't be created or destroyed in ordinary chemical and physical changes |
| physical change | a change of matter from one form to another without changing chemical properties |
| chemical change | when one ormore substances change into entirely new substaces |
| solid | the volume and shape of a substance are fixed |
| liquid | has a definite volume but not a definate shape |
| gas | does not have a definite volume or shape |
| pressure | the amount of force exerted per unit area of a surface |
| plasma | very hot highly electrically charged matter |
| evaporation | when a liquid becomes a gas |
| condensation | when a gas becomes a liquid |
| suspension | a mixture where the particles can settle out, like a snow globe |
| colloids | mixtures whose particles are smaller than suspension but larger than solution |
| physical property | characteristic that can be observed or measured w/o changing the matter |
| mass | measure of the amount of matter in an object |
| weight | measure of the force of gravity on an object |
