| bacteria |
microscopic organisms that often play a role in the decay of living things, the process of fermentation, and sometimes in causing disease. |
| beg |
to ask a favor of; to plead for. |
| citizen |
a person who is a member of a country because of being born there or being accepted as a member by law. |
| close |
to shut. |
| cream |
the part of whole milk that contains fat. Butter is made from cream. |
| drive |
to make something move by using force. |
| happen |
to take place; occur. |
| helpful |
doing useful things for a person or group; giving aid. |
| hook |
a curved piece that is used for holding, hanging, or pulling things. A hook is made of metal, plastic, or another hard material. |
| life |
the thing that is in humans, animals, and plants that allows them to grow and to produce more creatures like themselves. Things like rocks do not have life. |
| suit |
a set of clothes of the same material and color. A suit has a short coat and pants or a skirt. |
| tag |
a piece of thick paper, thin metal, or plastic that gives information and is attached to something. |
| unlock |
to open the lock of something. |
| vacuum |
a space or container in which there is no air or from which most of the air has been removed. |
| wire |
a long thread of metal. |