https://padlet.com/304350/d376sd4z0vss Earth's Impact on Evolution. en-us 2018-01-16 16:36:02 UTC 2018-01-16 16:53:55 UTC hello@padlet.com 304350 https://padlet.com/304350/d376sd4z0vss/wish/221777654 The geologic time scale (GTS) is a system of chronological dating that relates geological strata (stratigraphy) to time.]]> 2018-01-16 16:38:10 UTC https://padlet.com/304350/d376sd4z0vss/wish/221777654 304350 https://padlet.com/304350/d376sd4z0vss/wish/221778315 Layering of rocks or sediment is also called stratification.]]> 2018-01-16 16:39:37 UTC https://padlet.com/304350/d376sd4z0vss/wish/221778315 304350 https://padlet.com/304350/d376sd4z0vss/wish/221779121 The Rock Cycle is a group of changes.]]> 2018-01-16 16:41:20 UTC https://padlet.com/304350/d376sd4z0vss/wish/221779121 304350 https://padlet.com/304350/d376sd4z0vss/wish/221779670 A fossil is any preserved remains, impression, or trace of any once-living thing from a past geological age. ]]> 2018-01-16 16:42:32 UTC https://padlet.com/304350/d376sd4z0vss/wish/221779670 304350 https://padlet.com/304350/d376sd4z0vss/wish/221780240 The history of Earth concerns the development of planet Earth from its formation to the present day.]]> 2018-01-16 16:43:42 UTC https://padlet.com/304350/d376sd4z0vss/wish/221780240 304350 https://padlet.com/304350/d376sd4z0vss/wish/221781496 The time required for any specified property (e.g., the concentration of a substance in the body) to decrease by half.]]> 2018-01-16 16:46:20 UTC https://padlet.com/304350/d376sd4z0vss/wish/221781496 304350 https://padlet.com/304350/d376sd4z0vss/wish/221782412 Radiometric dating or radioactive dating is a technique used to date materials such as rocks or carbon, in which trace radioactive impurities were selectively incorporated when they were formed.]]> 2018-01-16 16:48:02 UTC https://padlet.com/304350/d376sd4z0vss/wish/221782412 304350 https://padlet.com/304350/d376sd4z0vss/wish/221783313 Radiometric dating or radioactive dating is a technique used to date materials such as rocks or carbon, in which trace radioactive impurities were selectively incorporated when they were formed.]]> 2018-01-16 16:50:05 UTC https://padlet.com/304350/d376sd4z0vss/wish/221783313 304350 https://padlet.com/304350/d376sd4z0vss/wish/221783832 Radioactive decay (also known as nuclear decay or (radioactivity) is the process by which an unstable atomic nucleus loses energy (in terms of mass in its rest frame) by emitting radiation, such as an alpha particle, beta particle with neutrino or only a neutrino in the case of electron capture, gamma ray, or electron ]]> 2018-01-16 16:51:27 UTC https://padlet.com/304350/d376sd4z0vss/wish/221783832 304350 https://padlet.com/304350/d376sd4z0vss/wish/221784639 The age of the Earth is approximately 4.54 ± 0.05 billion years (4.54 × 10⁹ years ± 1%). This dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.]]> 2018-01-16 16:53:09 UTC https://padlet.com/304350/d376sd4z0vss/wish/221784639