Answer
Solid
Liquid
Gas
Work Step by Step
In solids, atoms pack very closely to each other in fixed positions. Their atoms don't move randomly past each other. Example: ice
In liquids, atoms pack closely like solids; however, they are able to move around freely in a random mater. Liquids will occupy the shape of whatever container they are in. Example: water
In gaseous state, atoms move around freely and randomly. They also have lots of space between them. Gases can be compressible if added pressure. Example: Carbon dioxide gas at room temperature