| A | B |
|---|
| Atoms | the smallest unit of an element that has all the properties of than element |
| Chemical change | a reaction of change in a substance, produced by chemical means, that reuslts in a different substance |
| Compounds | a substance made of two or more different elements |
| Condensation | the process of a gas changing into a liquid |
| Conservation | the use of less of something to make the supply last longer |
| Cooling | to decrease the temperature of a substance |
| Density | the measure of how closely packed matter is in an object |
| Element | a substance made up of only one kind of atom |
| Evaporation | the process of a liquid changing into a gas |
| Gas | the state of matter that does not have a definite shape or volume |
| Heating | to increase the temperature of a substance |
| Liquid | the state of matter that has a definite volume but no definite shape |
| Mass | the amount of matter in an object |
| Matter | anything that has mass and takes up space |
| Mixtures | a blending of two types of matter that are not chemically combined |
| Physical change | a change in matter from one form to another that doesn't result in a different substance |
| Properties | the things you can describe about a substance |
| Solid | the state of matter than has a definite shape and a definite volume |
| Solutions | a uniform mixture of two or more substances in a single state of matter |
| Suspension | a kind of mixture in which particles of one ingredient are floating in another ingredient |
| Volume | the amount of space an object takes up |
