| Term | Definition |
| pacifist | one who opposes war or use of violence |
| restrict | to keep within set limits; to confine |
| sage | a very wise person |
| terrain | the landscape |
| vocation | any trade, profession or occupation |
| equation | a mathematical statement containing an equal sign, to show that two expressions are equal |
| evaluate | to find a numerical value for an expression; to work it out |
| expression | one or a group of mathematical symbols representing a number or quantity |
| function | a rule of matching elements of two sets of numbers in which an input value from the first set has only one output value in the second set |
| abiotic | an nonliving part of an organism's habitat |
| biotic | a living part pf an organism's habitat |
| ecosystem | the community of organisms that live in a particular area within their nonliving things |
| symbiosis | close relationship between two species that benefit at least one species |
| niche | role of an organism in its habitat; how it makes its living |
| Illinois | 21st state to join the United States of America |
| state | a politically organized body of people usually occupying a definite territory |
| identical | exactly the same |
| downfall | a sudden fall from power or position |
| displace | to force to move or flee |
| considerate | showing concern for the needs or feelings of others |
| cherish | to feel or show great love for |
| brisk | energetic, lively, fast; cool and fresh |
| requirement | something that is required or necessary |
| capitol | the building in which a state legislature |
| explored | to go into or travel over for purposes of discovery or adventure |