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Science 5.1

Change Over Time
STUDY
PLAY
adaptation
a characteristic that helps an organism survive and reproduce in its environment
species
a group of organisms that can mate with one another to produce fertile offspring
evolution
the process in which populations change over time
fossils
the remains or imprints of once-living organisms found in layers of rock (sedimentary)
Fossil Record
a timeline of life known (made by scientists who studied fossils)