https://padlet.com/303903/33v2h0vd9xe7 Made with fortitude en-us 2018-01-23 20:19:54 UTC 2023-03-06 09:35:44 UTC hello@padlet.com 303903 https://padlet.com/303903/33v2h0vd9xe7/wish/224000594 he geologic time scale is a system of chronological dating that relates geological strata to time.]]> 2018-01-23 20:20:54 UTC https://padlet.com/303903/33v2h0vd9xe7/wish/224000594 303903 https://padlet.com/303903/33v2h0vd9xe7/wish/224003521 In geology and related fields, a stratum is a layer of sedimentary rock or soil, or igneous rock that were formed at the earth's surface, with internally consistent characteristics that distinguish it from other layers.]]> 2018-01-23 20:27:22 UTC https://padlet.com/303903/33v2h0vd9xe7/wish/224003521 303903 https://padlet.com/303903/33v2h0vd9xe7/wish/224004014 The Rock Cycle is a group of changes. Igneous rock can change into sedimentary rock or into metamorphic rock. Sedimentary rock can change into metamorphic rock or into igneous rock. Metamorphic rock can change into igneous or sedimentary rock. Igneous rock forms when magma cools and makes crystals.]]> 2018-01-23 20:28:32 UTC https://padlet.com/303903/33v2h0vd9xe7/wish/224004014 303903 https://padlet.com/303903/33v2h0vd9xe7/wish/224004198 A fossil is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, hair, petrified wood, oil, coal, and DNA remnants.]]> 2018-01-23 20:29:01 UTC https://padlet.com/303903/33v2h0vd9xe7/wish/224004198 303903 https://padlet.com/303903/33v2h0vd9xe7/wish/224005646 a method of dating geological or archeological specimens by determining the relative proportions of particular radioactive isotopes present in a sample.]]> 2018-01-23 20:32:30 UTC https://padlet.com/303903/33v2h0vd9xe7/wish/224005646 303903 https://padlet.com/303903/33v2h0vd9xe7/wish/224006439 another term for carbon dating.]]> 2018-01-23 20:34:09 UTC https://padlet.com/303903/33v2h0vd9xe7/wish/224006439 303903 https://padlet.com/303903/33v2h0vd9xe7/wish/224006741 The spontaneous transformation of an unstable atomic nucleus into a lighter one, in which radiation is released in the form of alpha particles, beta particles, gamma rays, and other particles.]]> 2018-01-23 20:34:50 UTC https://padlet.com/303903/33v2h0vd9xe7/wish/224006741