| chute |
a passage down which things may slide in order to be moved from one area to another. |
| copper |
a reddish brown metal that is one of the chemical elements. Copper is used to make pipes, because it does not easily rust. It is used to make wires, because it is an excellent conductor of electricity. It can be combined with other metals to make alloys such as brass and bronze. |
| emerge |
to rise up from or come into view. |
| equality |
the condition of being the same in value, measure, or amount. |
| everyday |
happening daily; routine. |
| expand |
to make larger or wider. |
| flinch |
to draw away suddenly in pain or fear. |
| lug |
to pull, lift, or carry with a great effort. |
| metropolis |
a large city. |
| operation |
the act or process of working or running. |
| perimeter |
the boundary or border of a figure or area. |
| pollute |
to make dirty or harmful to health by mixing in or adding waste material. |
| recent |
having to do with or happening in the very near past. |
| respond |
to answer or give a reply, in words or otherwise. |
| transport |
the act of carrying or moving from one place to another. |