| bubble |
a ball of air or other gas inside another substance. |
| cast |
a thick, stiff covering for an injured limb or joint, especially one in which the bone is broken. A cast is made of cloth and some kind of liquid material that can become very hard and solid. |
| copy |
something that looks exactly like another thing. |
| driver |
a person who drives, or a person whose job is to drive. |
| empty |
holding or containing nothing. |
| fin |
a thin, flat body part of a fish and certain other water animals which is used for swimming or balance. |
| hook |
a curved piece that is used for holding, hanging, or pulling things. A hook is made of metal, plastic, or another hard material. |
| invisible |
not able to be seen. |
| land |
the solid part of the earth's surface. |
| lawn |
an area of land where people plant grass and cut it to keep it short. |
| lobby |
to try to influence people who make laws to vote in a way that supports what the group wants. |
| tire1 |
to take a person's strength or energy away. |
| truck |
a large motor vehicle used for carrying heavy loads. |
| umbrella |
a device that protects you from the rain. It has cloth stretched over a wire frame that is held up by a long handle. |
| wheel |
a round thing that turns in circles and allows cars, trucks, bicycles, and other things to move. |