| boundary |
something that marks the edge or limit. |
| closely |
carefully and with attention. |
| clutter |
to fill or litter with a messy collection of things. |
| 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. |
| enrich |
to make wealthier. |
| flee |
to run away or escape. |
| minimum |
the smallest or least in amount, number, or degree. |
| occurrence |
an event that takes place; incident. |
| proper |
correct for a certain purpose. |
| replacement |
a person or thing that takes the position of another or takes over the function of another. |
| rugged |
having a surface that is rough and broken. |
| substance |
a particular kind of matter. |
| tame |
taken from a wild state and made obedient; domesticated. |
| teammate |
a member of the same team or group. |
| tend1 |
to be likely; usually do. |