| A | B |
|---|
| Physical | Color |
| Physical | Size |
| Physical | Shape |
| Physical | Texture |
| Chemical | Burning |
| Chemical | Rusting |
| Chemical | Reacts to Acid |
| Standard Unit | system of measurement that all agree on |
| Metric System | A system of measurement based on the number ten |
| Metric System | used in most of the world and science community |
| area | the number of units squares that fit inside a surface |
| length | the number of units that fit along one edge of an object |
| mass | the measure of the amount of matter ina a given object |
| volume | the measure of the amount of space an object takes up |
| density | the amount of matter in a given space |
| gravity | a force of attraction, or pull, between objets |
| newton | the metric unit for weight and force |
| weight | the measure of the pull of gravity between an object and Earth |
| matter | anything that has mass and volume |
| states of matter | solid, liquid, gas |
| solid | definite shape, definite mass, definite volume, strong bonds |
| liquid | definite mass, takes the shape of its container, weak bonds |
| gas | no definite shape or volume; no bonds; often invisible |
| buoyancy | the upward force of water, another liquid, or air that keeps things afloat |
| property | any charateristic of matter that can be observed |
| physical properites | color, size, shape, texture |
| physical change | begins and ends with the same type of matter |
| chemical properties | burning, rusting, reacts with acid (bubbling) |
| chemical change | begins with one type of matter and ends with a different kind of matter |
| change of state | a physical change in which one state of matter changes to another |
| evaporation | a liquid turns to a gas |
| rust | chemical reaction from iron and oxygen |
| tarnish | chemical reaction from silver and sulfur |
| balance scale | a tool used to measure mass in grams |
| meter stick | a tool used to measure length in meters |
| graduated cylinder | a tool used to measure volume in liters |
| beaker | a tool used to measure volume in liters |
| balanced scale | measures mass |
