| A | B |
|---|
| matter | anything that takes up space, has mass, and has properties that you can observe and describe |
| buoyancy | the upward force of water or air on an object |
| mass | the amount of matter making up an object |
| solid | a form of matter taht has a definte shape and takes up a definite amount of space |
| liquid | a form of matter taht takes up a definite amount of space and has no definite shape |
| gas | a form of matter that does not take up a definite amount of space and has no defite shape |
| metric system | a system of measurement based on units of 10 |
| length | the number of units that fit along one edge of something |
| area | the number of unit squaes that fit inside a surface |
| volume | how much space an object takes up |
| weight | the measure of the pull of gravity between an object and Earth |
| density | the amount of matter in a given space |
| element | a substance made up of only one type of matter |
| atom | the smallest particle of an element that has all the properties of that element |
| mixture | two or more types of matter that are mixed together, each keeping its own chemical properties |
| filter | a tool used to separate things by size |
| evaporation | the change of a liquid to a gas |
| compound | a substance made when two or more elements are joined, each losing its own properties |
