| bacteria |
microscopic organisms that often play a role in the decay of living things, the process of fermentation, and sometimes in causing disease. |
| bucket |
an open container with round sides, a flat bottom, and a curved handle at the top. |
| ceiling |
the part of a room that is over your head. |
| clear |
used to describe the sky when there are no clouds or when there is little pollution or dust. |
| commander |
an officer who is the leader of a military unit. |
| injury |
damage or wrong that causes physical or mental pain or hardship. |
| mineral |
a pure, hard substance in the earth that does not come from an animal or a plant. |
| plant |
a living thing that has leaves, makes its own food, and has roots that usually grow in the earth. |
| precious |
of great worth or value. |
| printer |
a machine that makes printed copies from a computer. |
| roam |
to move or travel around without a plan; wander. |
| sign |
something that shows a fact, event, or some other thing. |
| ski |
to glide over snow wearing a pair of long, narrow, smooth runners attached to boots. |
| terror |
very great fear. |
| upon |
on. |