| A | B |
|---|
| erosion | all the natural processes that wear away earth and rock |
| evidence | the data used to draw a conclusion |
| excavation | the process of finding something by digging for it |
| extinct | no longer living on the earth; having died out |
| fossils | the hardened remains of animals or plants of prehistoric times |
| geologists | scientists who study the earth's crust and its rocks |
| hypotheses | scientific suggestions based on what is known so far |
| paleontologist | a scientist who studies prehistoric life |
| specimens | samples taken for scientific study |
| theory | a widely held scientific explanation that is based on evidence but cannot be stated as fact |
| ludicrous | silly, ridiculous |
| prey | an animal hunted or caught by other animals for food |
| quarrel | a fight or argument |
| predator | an animal that hunts other animals for food |
| maneuver | a procedure or method of working usually involving expert physical movement |
