theme 2: what really happened?
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Theme 2: What Really Happened?. Selection 3: Hundreds of dinosaurs once died in a small area in New Mexico. As you read about what might have happened, monitor your understanding. Clarify difficult parts by rereading or reading ahead. - PowerPoint PPT PresentationTRANSCRIPT
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Theme 2: What Really Happened?Selection 3: Hundreds of dinosaurs once died in a small area in New Mexico. As you read about what might have happened, monitor your understanding. Clarify difficult parts by rereading or reading ahead.
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asteroids: small often irregularly shaped bodies that orbit the sun
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embryos: animals in their earliest stages of growth, before they are born
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erosion: all the natural processes that wear away earth and rock
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excavation: the process of finding something by digging it up
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extinct: no longer living on earth; having died out; gone forever
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prehistoric: time before history was recorded in writing.
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fossils: the hardened skeletons or other remains of creatures of prehistoric times
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geologist: scientists who study the earth’s crust and the rocks it is made of
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paleontologist: a scientist who studies prehistoric life
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specimens: samples taken for scientific study