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10 terms

Dinosaur Ghosts

Study the words and definitions for your upcoming quiz.
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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 skeletons or other remains of creatures of prehistoric times
geologists
scientists who study the earth's crust and the rocks it is made of
hypotheses
scientific suggestions based on what is known so far
paleontologist
a scientist who studies prehistoric life
specimens
samples taken for scientific study
theory
an idea that is based on evidence but that cannot be stated as fact