https://padlet.com/bsantiagomm/dulcat2zompf en-us 2017-01-24 21:51:51 UTC 2025-12-21 15:26:12 UTC hello@padlet.com bsantiagomm https://padlet.com/bsantiagomm/dulcat2zompf/wish/149184862 Fossils are the remains  of ancient living things, plants or microorganisms.]]> 2017-01-24 21:54:31 UTC https://padlet.com/bsantiagomm/dulcat2zompf/wish/149184862 bsantiagomm https://padlet.com/bsantiagomm/dulcat2zompf/wish/149185857 Because they supply us with information about how species looked in the past.]]> 2017-01-24 22:01:29 UTC https://padlet.com/bsantiagomm/dulcat2zompf/wish/149185857 bsantiagomm https://padlet.com/bsantiagomm/dulcat2zompf/wish/149186667 First, an animal dies and sinks into the ocean. Then, sediment covers the hard parts. After that, the sediment hardens into rock. Finally, The fossil appears at the surface]]> 2017-01-24 22:06:55 UTC https://padlet.com/bsantiagomm/dulcat2zompf/wish/149186667 bsantiagomm https://padlet.com/bsantiagomm/dulcat2zompf/wish/149187786 2017-01-24 22:15:09 UTC https://padlet.com/bsantiagomm/dulcat2zompf/wish/149187786 bsantiagomm https://padlet.com/bsantiagomm/dulcat2zompf/wish/149188007 When the skeleton of an animal dissolves in the water and a cavity remains.]]> 2017-01-24 22:16:54 UTC https://padlet.com/bsantiagomm/dulcat2zompf/wish/149188007 bsantiagomm https://padlet.com/bsantiagomm/dulcat2zompf/wish/149188778 Water rich in minerals can then penetrate the mold and form a cast.]]> 2017-01-24 22:21:48 UTC https://padlet.com/bsantiagomm/dulcat2zompf/wish/149188778 bsantiagomm https://padlet.com/bsantiagomm/dulcat2zompf/wish/149189889 Scientists have been able to determine how old the rock layer is and the age of fossils in that rock layer using some radioactive elements.]]> 2017-01-24 22:29:03 UTC https://padlet.com/bsantiagomm/dulcat2zompf/wish/149189889 bsantiagomm https://padlet.com/bsantiagomm/dulcat2zompf/wish/149190737 Scientists use it as a system  of time measurement that relates  the findings in different layers of the Earth to time.]]> 2017-01-24 22:35:07 UTC https://padlet.com/bsantiagomm/dulcat2zompf/wish/149190737 bsantiagomm https://padlet.com/bsantiagomm/dulcat2zompf/wish/149191608 Absolute dating, because fossil age can be determined more exactly. ]]> 2017-01-24 22:41:06 UTC https://padlet.com/bsantiagomm/dulcat2zompf/wish/149191608 bsantiagomm https://padlet.com/bsantiagomm/dulcat2zompf/wish/149192895 2017-01-24 22:50:49 UTC https://padlet.com/bsantiagomm/dulcat2zompf/wish/149192895 bsantiagomm https://padlet.com/bsantiagomm/dulcat2zompf/wish/149193125 2017-01-24 22:53:11 UTC https://padlet.com/bsantiagomm/dulcat2zompf/wish/149193125 bsantiagomm https://padlet.com/bsantiagomm/dulcat2zompf/wish/149193247 2017-01-24 22:54:40 UTC https://padlet.com/bsantiagomm/dulcat2zompf/wish/149193247 bsantiagomm https://padlet.com/bsantiagomm/dulcat2zompf/wish/149193446 2017-01-24 22:57:05 UTC https://padlet.com/bsantiagomm/dulcat2zompf/wish/149193446 bsantiagomm https://padlet.com/bsantiagomm/dulcat2zompf/wish/149413409 2017-01-25 18:10:30 UTC https://padlet.com/bsantiagomm/dulcat2zompf/wish/149413409 bsantiagomm https://padlet.com/bsantiagomm/dulcat2zompf/wish/150104217 Is used to date organic fossils, such as plants

]]> 2017-01-29 17:45:59 UTC https://padlet.com/bsantiagomm/dulcat2zompf/wish/150104217 bsantiagomm https://padlet.com/bsantiagomm/dulcat2zompf/wish/150104336 Is used for inorganic substances, such as rocks and minerals

]]> 2017-01-29 17:47:39 UTC https://padlet.com/bsantiagomm/dulcat2zompf/wish/150104336 bsantiagomm https://padlet.com/bsantiagomm/dulcat2zompf/wish/150104624 Its not as exact a absolute dating, but still scientists use this technique too

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