| bacteria |
microscopic organisms that often play a role in the decay of living things, the process of fermentation, and sometimes in causing disease. |
| behind |
in or at the back of; on the other side of. |
| boot |
a covering for the foot and lower part of the leg, usually made of leather or rubber. |
| clue |
something that helps to solve a problem or mystery. |
| crawl |
to move along the ground on the hands and knees. |
| equipment |
anything made for a particular use. Jobs and sports often require special equipment. |
| kingdom |
a country that is ruled by royalty. |
| lazy |
not wanting to work or use effort. |
| model |
a small copy of something. |
| paste |
a mixture used to stick paper or other light materials together. |
| peck2 |
to strike, or pick up quickly with the beak. |
| sell |
to give something to someone in exchange for money. |
| sensible |
having or showing good judgment; wise. |
| thief |
a person who steals. |
| vacuum |
a space or container in which there is no air or from which most of the air has been removed. |