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dino856
"Why did the dinosaurs disappear"
| Question | Answer |
|---|---|
| extinct | no longer living or existing |
| brachiosaurs | big dinosaurs with long necks, nostrils above their eyes, and forelegs longer than hind legs |
| stegosaurus | a dinosaur with 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 one region to another |
| adapt | to change to fit new conditions |
| pterosaur | an extinct flying reptile |
| asteroid | one 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 |
| rift | an opening caused by splitting, a narrow crack in 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 |
| molten | 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 or 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 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. |
| meteorologists | scientists who study the atmosphere |
| absorb | to take in and become part of |
| equations | mathematical statements to show that two things are equal |
| fertile | able to produce crops rich |
| economies | the managing of money and material |
| informed | aware; Knowledgeable |
Created by:
amccormickt
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