SCIENCE CROSSWORD PUZZLE
1.FOSSIL/A imprint of once a livig thing 2.FOSSIL RECORD/A sequence of life by fossils found in the Earth's crust 3. PALEONTOLOGIST/A type of scientists that uses fossils to reconstruct what happend in the past before humans existed4.RELATIVE DATING/This is used to see if a object is older or younger than object(also can be an event 5.ABSOLUTE DATING/Estimating the age of a sample by measuring the unstable atoms in the sample(can be a event)
6.GEOLOGICAL TIMESCALE/The time in which Earth's history in a certain time in time 7.EXTINCT/A word that describes an animal or anything that was once had many but has died out completely 8.PANGAEA/About 200 million years ago this single landmass that was one landmass of all the present-day continents 9.PRECAMBRIAN TIME/A period of time in the geologic timescale beginning about 4.6 billion years ago and ending about 540 million years ago 10.PALEOZOIC ERA/A perod of time in the geologic timescale beginning about 570 mllion years ago and ending 248 billion years ago 11.CENOZOIC ERA/A period of time in the geologic timescale beginning about 65 million years ago continuing until the present day 12.MESOZOIC ERA/A period of time in the geologic timescale beginning about 248 million years ago lasting about 183 million years
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