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dino1997

"Why did the dinosaurs disappear?"

QuestionAnswer
extinct no longer living or existing
brachiosaurs big dinosaurs with long necks, nostrils above the eyes, and forelegs longer than hind legs
stegosaurus a dinosaur with a short neck, small head, and long hind legs
triceratops a dinosaur with a horn above each eye and a horn on its nose
tyrannosaurs large dinosaurs with small forelimbs and large heads
paleontologists scientists who study forms of life existing in prehistoric times
migrated moved from 1 region to another
adapt to change to fit new conditions
pterosaur an extinct flying reptile
asteriod 1 of the thousands of small planets that orbit the sun
eruption a sudden, violent bursting
geology the study of the origin of the Earth
iridium a hard and brittle metal
species groups of the plants or animals that are alike in some way
rift an opening caused by splitting; a narrow crack in the rock
continents the seven main land areas on the Earth
ancient very old
minerals substances formed in the Earth by nature
geologists scientists who study the origin, history, and structure of the Earth
molton melted by heat
convection the transfer of heat by motion, especially an upward motion
atmosphere all the air around us
Climate The usual weather that occurs in a place, including the average temperature and average amounts of rain and wind
average typical or usual level
nitrogen a colorless, odorless gas that makes up about four fifths of the atmosphere. all plants and animals need nitrogen.
oxygen a colorless, odorless, tasteless gas. It is needed for animals and plants to live.
argon a colorless, odorless gas that makes up about one percent of the earths atmosphere.
carbon dioxide a colorless, odorless gas that is composed of carbon and oxygen and does not burn. It is produced when animals breathe and when fuel containing carbon burns.
methane a colorless, odorless gas that burns easily; used as fuel
radiation the process of giving off energy in rays or waves
Created by: Cvenegonit
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