| A | B |
|---|
| Solid | a kind of matter that has a fixed shape and a fixed volume. |
| Liquid | a kind of matter that has a fixed volume and the shape changes with the shape of its container. |
| Gas | a kind of matter that easily changes volume and shape. |
| Solid | the particles of this state of matter are packed closely together and cannot move from their spot. |
| Liquid | the particles of this state of matter are packed closely together and can move away from their spots. |
| Gas | the particles in this state of matter can either spread apart or be squeezed together and can move around freely. |
| Air | is an example of a gas. |
| A pencil | is an example of a solid. |
| Milk | is an example of a liquid. |
| Melting | This is what it is called when a solid changes to a liquid. |
| Freezing | This is what it is called when a liquid changes to a solid. |
| A graph | This is a diagram that shows how two things are related. |
| Sublimation | The direct change from a solid to a gas. |
| Vaporization | When the particles in a liquid gain enough energy to form a gas. |
| Condensation | When the particles of a gas lose enough thermal energy to form a liquid. |
| Pressure | the strength of gas particles bumping into the sides of the container |
| Thermal Energy | The kind of energy that is often given off or taken in when matter changes. |
| Energy | The ability to do work, to cause matter to change. |
| Temperature | The measure of the motion of the particles of matter. Tells the amount of thermal energy an object has. |
| Volume | the amount of space that matter takes up. |
