Earth's Impact on evolution by Ashley Martinez https://padlet.com/304907/uo8yyksp5vt0 Made with a wish on a star en-us 2018-01-23 16:39:32 UTC 2023-06-16 07:58:25 UTC hello@padlet.com 1. Geological time scale It is used by geologists, paleontologists, and other Earth scientists to describe the timing and relationships of events that have occurred during Earth's history. 304907 https://padlet.com/304907/uo8yyksp5vt0/wish/223871279 2018-01-23 16:41:49 UTC https://padlet.com/304907/uo8yyksp5vt0/wish/223871279 2. Rock strata 304907 https://padlet.com/304907/uo8yyksp5vt0/wish/223872084 In geology and related fields, a stratum (plural: strata) is a layer of sedimentary rock or soil, or igneous rockthat were formed at the earth's surface, with internally consistent characteristics that distinguish it from other layers.

]]> 2018-01-23 16:43:08 UTC https://padlet.com/304907/uo8yyksp5vt0/wish/223872084 3.Rock cycle 304907 https://padlet.com/304907/uo8yyksp5vt0/wish/223872928 an idealized cycle of processes undergone by rocks in the earth's crust, involving igneous intrusion, uplift, erosion, transportation, deposition as sedimentary rock, metamorphism, remelting, and further igneous intrusion.]]> 2018-01-23 16:44:33 UTC https://padlet.com/304907/uo8yyksp5vt0/wish/223872928 4. Fossils 304907 https://padlet.com/304907/uo8yyksp5vt0/wish/223873861 the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.]]> 2018-01-23 16:46:04 UTC https://padlet.com/304907/uo8yyksp5vt0/wish/223873861 5. Half life 304907 https://padlet.com/304907/uo8yyksp5vt0/wish/223874697 the time required for any specified property (e.g., the concentration of a substance in the body) to decrease by half.]]> 2018-01-23 16:47:30 UTC https://padlet.com/304907/uo8yyksp5vt0/wish/223874697 6.Radiometric Dating 304907 https://padlet.com/304907/uo8yyksp5vt0/wish/223875595 a method of dating geological or archeological specimens by determining the relative proportions of particular radioactive isotopes present in a sample.]]> 2018-01-23 16:48:56 UTC https://padlet.com/304907/uo8yyksp5vt0/wish/223875595 7. Radiocarbon dating 304907 https://padlet.com/304907/uo8yyksp5vt0/wish/223877127 another term for carbon dating.]]> 2018-01-23 16:50:52 UTC https://padlet.com/304907/uo8yyksp5vt0/wish/223877127 8. Radioactive decay 304907 https://padlet.com/304907/uo8yyksp5vt0/wish/223878035 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 16:52:37 UTC https://padlet.com/304907/uo8yyksp5vt0/wish/223878035