| A | B |
|---|
| solid | a state of matter having definite shape and volume |
| liquid | a state of matter having ability to flow, having definite volume, and not having a definite shape |
| gas | a state of matter that can expand indefinitely and completely fill its container |
| matter | anything that has mass or takes up space |
| experiment | scientific procedure is done to make a discovery or test a hypothesis |
| hypothesis | a guess that has not been proven but assumed to be true until there has been further investigation |
| dissolve | solid substance mixes into a liquid and becomes included in it |
| evaporate | when something turns from a liquid into a vapor (steam) |
| weight | the vertical force exerted by a mass as a result of gravity |
| substance | physical material from which something is made |
| reactant | a chemical substance that is present at the start of a chemical reaction |
| chemical change | change in matter that results in one or more different kinds of matter forming |
| physical change | A change in size, shape, or state of matter where no new matter is formed |
| product | end result of a reaction |
| element | a substance that cannot be separated into a simpler substance |
| compound | a substance formed by chemical combining of two or more elements or ingredients |
| heat | energy that can be transferred through solid and/or liquid |
| rust | the red or orange coating that forms on the surface of iron or steel when exposed to air/oxygen |
