https://padlet.com/3060071/d156k08ji6yt en-us 2018-01-23 16:31:25 UTC 2024-11-12 01:15:08 UTC hello@padlet.com 3060071 https://padlet.com/3060071/d156k08ji6yt/wish/223867390 The geologic time scale is a system of chronological dating that relates geological strata to time.]]> 2018-01-23 16:36:17 UTC https://padlet.com/3060071/d156k08ji6yt/wish/223867390 3060071 https://padlet.com/3060071/d156k08ji6yt/wish/223867661  a single bed of sedimentary rock, generally consisting of one kind of matter representing continuous deposition.]]> 2018-01-23 16:36:39 UTC https://padlet.com/3060071/d156k08ji6yt/wish/223867661 3060071 https://padlet.com/3060071/d156k08ji6yt/wish/223867803 The Rock Cycle is a group of changes. Igneous rock can change into sedimentary rock or into metamorphic rock. ]]> 2018-01-23 16:36:50 UTC https://padlet.com/3060071/d156k08ji6yt/wish/223867803 3060071 https://padlet.com/3060071/d156k08ji6yt/wish/223868239 the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.]]> 2018-01-23 16:37:26 UTC https://padlet.com/3060071/d156k08ji6yt/wish/223868239 3060071 https://padlet.com/3060071/d156k08ji6yt/wish/223868335 the time taken for the radioactivity of a specified isotope to fall to half its original value.]]> 2018-01-23 16:37:36 UTC https://padlet.com/3060071/d156k08ji6yt/wish/223868335 3060071 https://padlet.com/3060071/d156k08ji6yt/wish/223868512 a radioactive isotope of carbon]]> 2018-01-23 16:37:49 UTC https://padlet.com/3060071/d156k08ji6yt/wish/223868512 3060071 https://padlet.com/3060071/d156k08ji6yt/wish/223868595 a radioactive isotope of carbon]]> 2018-01-23 16:37:58 UTC https://padlet.com/3060071/d156k08ji6yt/wish/223868595 3060071 https://padlet.com/3060071/d156k08ji6yt/wish/223868973  is the process by which an unstable atomic nucleus loses energy]]> 2018-01-23 16:38:32 UTC https://padlet.com/3060071/d156k08ji6yt/wish/223868973