https://padlet.com/jtbrooks2002/4l37168xekvk By: Jaden Brooks en-us 2018-10-19 16:33:46 UTC 2018-10-19 16:57:14 UTC hello@padlet.com jtbrooks2002 https://padlet.com/jtbrooks2002/4l37168xekvk/wish/294910973 2018-10-19 16:36:18 UTC https://padlet.com/jtbrooks2002/4l37168xekvk/wish/294910973 jtbrooks2002 https://padlet.com/jtbrooks2002/4l37168xekvk/wish/294912403 https://www.livescience.com/60507-trilobite-tummies-revealed-in-new-fossils.html
http://www.prehistoricplanet.com/features/index.php?id=48
https://www.fossilera.com/pages/dating-fossils
https://ctl.byu.edu/sites/default/files/portfolio/media/Geo101/slideshows/relative1.htm]]> 2018-10-19 16:38:24 UTC https://padlet.com/jtbrooks2002/4l37168xekvk/wish/294912403 jtbrooks2002 https://padlet.com/jtbrooks2002/4l37168xekvk/wish/294912950 Scientists are able to get lots of evidence about the Earth, the ways it formed, and fossils through rock layers. Fossils are contained in all the rock layers of the Earth. the oldest layers contain the oldest fossils and the newest layers contain recent fossils. These layers vary drastically in age. Overtime scientists have seen the change in the fossils and have been able to see the evolution of living things on Earth.]]> 2018-10-19 16:39:25 UTC https://padlet.com/jtbrooks2002/4l37168xekvk/wish/294912950 jtbrooks2002 https://padlet.com/jtbrooks2002/4l37168xekvk/wish/294915605 THE LAW OF ORIGINAL HORIZONTALITY: This law proves that sediment always lays horizontal.
THE LAW OF SUPERPOSITION: This law states the the oldest rock layers are at the bottom and the newest layers are at the top.]]> 2018-10-19 16:44:39 UTC https://padlet.com/jtbrooks2002/4l37168xekvk/wish/294915605 jtbrooks2002 https://padlet.com/jtbrooks2002/4l37168xekvk/wish/294917025 There are two main ways to determine the age of a fossil. These include relative dating and absolute dating. ]]> 2018-10-19 16:47:12 UTC https://padlet.com/jtbrooks2002/4l37168xekvk/wish/294917025 jtbrooks2002 https://padlet.com/jtbrooks2002/4l37168xekvk/wish/294918122 This method is used to determine the relative age of fossils. Scientists use similar rocks and fossils with a known age to determine the relative age of other fossils. Scientists use index fossils to help determine the relative ago of other fossils and rocks. ]]> 2018-10-19 16:49:13 UTC https://padlet.com/jtbrooks2002/4l37168xekvk/wish/294918122 jtbrooks2002 https://padlet.com/jtbrooks2002/4l37168xekvk/wish/294919146 This method is used by scientists to determine the exact age of a fossil or rock. Radiometric dating is used in this process. This process measure the decay of isotopes in the fossils which gives the actual date of the fossil or rock. ]]> 2018-10-19 16:51:30 UTC https://padlet.com/jtbrooks2002/4l37168xekvk/wish/294919146 jtbrooks2002 https://padlet.com/jtbrooks2002/4l37168xekvk/wish/294920981 This image shows the many rock layers that have formed over time.]]> 2018-10-19 16:55:43 UTC https://padlet.com/jtbrooks2002/4l37168xekvk/wish/294920981