https://padlet.com/cwinstead100/ekf9b50b79oa The Age of Rocks and Fossils en-us 2018-03-13 22:40:00 UTC 2018-03-13 22:50:11 UTC hello@padlet.com cwinstead100 https://padlet.com/cwinstead100/ekf9b50b79oa/wish/241654086 2018-03-13 22:42:21 UTC https://padlet.com/cwinstead100/ekf9b50b79oa/wish/241654086 cwinstead100 https://padlet.com/cwinstead100/ekf9b50b79oa/wish/241654730 The layers near the top are younger and the lower they are, the older they are.]]> 2018-03-13 22:44:41 UTC https://padlet.com/cwinstead100/ekf9b50b79oa/wish/241654730 cwinstead100 https://padlet.com/cwinstead100/ekf9b50b79oa/wish/241654847 The comparing of rocks with unknown ages to the layers around it to ascertain a rough estimate of the date of the rock.]]> 2018-03-13 22:45:11 UTC https://padlet.com/cwinstead100/ekf9b50b79oa/wish/241654847 cwinstead100 https://padlet.com/cwinstead100/ekf9b50b79oa/wish/241655363 Examining the ratio of carbon-14 atoms to carbon-12 atoms, scientists could determine the age of organisms' remains up to about 70,000 years]]> 2018-03-13 22:47:11 UTC https://padlet.com/cwinstead100/ekf9b50b79oa/wish/241655363 cwinstead100 https://padlet.com/cwinstead100/ekf9b50b79oa/wish/241655917 https://staff.concord.org/~btinker/GL/web/geology/english/dating_rocks.htm]]> 2018-03-13 22:49:47 UTC https://padlet.com/cwinstead100/ekf9b50b79oa/wish/241655917