| coal |
a hard black or dark brown substance that is found in the earth. People burn coal for heat and energy. |
| disturb |
to interrupt by making noise or doing something that draws away attention. |
| foolish |
having poor sense; silly. |
| gas |
a form of matter that is neither liquid nor solid. Oxygen is an example of a gas. |
| invite |
to ask in a polite way to go somewhere or do something. |
| lifetime |
the length of time something is expected to work well. |
| metal |
a kind of chemical element, such as copper, iron, or silver, that can move heat or electricity through itself. |
| mill |
a machine that crushes whole or solid substances. |
| particular |
being the only one in mind or referred to out of many possibilities; specific; special. |
| rainbow |
a curved arc of light of many colors across the sky. Rainbows are caused by the sun's shining through drops of water during or after a rain. |
| rider |
a person who is carried by a vehicle or animal. |
| suck |
to pull into the mouth by using the tongue and lips. |
| telephone |
to call or speak to someone using an electronic device that sends and receives sound over long distances. |
| ton |
a unit of weight equal to 2,000 pounds. |
| yesterday |
on the day before today. |