| bacteria |
microscopic organisms that often play a role in the decay of living things, the process of fermentation, and sometimes in causing disease. |
| born |
a past participle of bear1. |
| bundle |
a number of things that you tie or wrap together so you can carry them. |
| chalk |
a type of soft, white stone. Chalk is made into long thin shapes used for writing or drawing. |
| fellow |
belonging to the same group, having the same job, or sharing the same interests. |
| fuel |
anything such as wood or gasoline that is burned as a source of energy. |
| grease |
a thick, oily material used on a machine to allow the parts to rub together smoothly while the machine is working. |
| height |
the distance from the bottom to the top. |
| light1 |
the form of energy that makes it possible for the eye to see. The sun produces light. |
| main |
most important. |
| mostly |
almost completely; mainly. |
| trace |
a very small amount of something. |
| trouble |
serious difficulty. |
| underground |
located, living, or taking place beneath the earth's surface. |
| wrap |
to cover by circling or folding something around. |