https://padlet.com/303947/cbglg3kqdzk9 Made with magic en-us 2018-01-22 18:29:12 UTC 2018-01-22 19:14:59 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Pumpkin.png 303947 https://padlet.com/303947/cbglg3kqdzk9/wish/223482952 The geologic time scale (GTS) is a system of chronological dating that relates geological strata (stratigraphy) to time. 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.]]> 2018-01-22 18:30:41 UTC https://padlet.com/303947/cbglg3kqdzk9/wish/223482952 303947 https://padlet.com/303947/cbglg3kqdzk9/wish/223483214 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.

]]> 2018-01-22 18:31:10 UTC https://padlet.com/303947/cbglg3kqdzk9/wish/223483214 303947 https://padlet.com/303947/cbglg3kqdzk9/wish/223484932 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.]]> 2018-01-22 18:33:44 UTC https://padlet.com/303947/cbglg3kqdzk9/wish/223484932 303947 https://padlet.com/303947/cbglg3kqdzk9/wish/223485893 The remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.]]> 2018-01-22 18:35:14 UTC https://padlet.com/303947/cbglg3kqdzk9/wish/223485893 303947 https://padlet.com/303947/cbglg3kqdzk9/wish/223486449 The history of Earth concerns the development of planet Earth from its formation to the present day. Nearly all branches of natural science have contributed to the understanding of the main events of Earth's past. The age of the Earth is approximately one-third of the age of the universe.

]]> 2018-01-22 18:36:13 UTC https://padlet.com/303947/cbglg3kqdzk9/wish/223486449 303947 https://padlet.com/303947/cbglg3kqdzk9/wish/223487422 The time required for any specified property (e.g., the concentration of a substance in the body) to decrease by half.

]]> 2018-01-22 18:37:48 UTC https://padlet.com/303947/cbglg3kqdzk9/wish/223487422 303947 https://padlet.com/303947/cbglg3kqdzk9/wish/223489513 A method of dating geological or archeological specimens by determining the relative proportions of particular radioactive isotopes present in a sample.

]]> 2018-01-22 18:41:04 UTC https://padlet.com/303947/cbglg3kqdzk9/wish/223489513 303947 https://padlet.com/303947/cbglg3kqdzk9/wish/223490557 another term for carbon dating.

]]> 2018-01-22 18:42:33 UTC https://padlet.com/303947/cbglg3kqdzk9/wish/223490557 303947 https://padlet.com/303947/cbglg3kqdzk9/wish/223492605 radioactive decay. (rā'dē-ō-āk'tĭv) 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.

]]> 2018-01-22 18:45:30 UTC https://padlet.com/303947/cbglg3kqdzk9/wish/223492605 303947 https://padlet.com/303947/cbglg3kqdzk9/wish/223493062 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.

]]> 2018-01-22 18:46:02 UTC https://padlet.com/303947/cbglg3kqdzk9/wish/223493062 303947 https://padlet.com/303947/cbglg3kqdzk9/wish/223493764
Mercury is the smallest and innermost planet in the Solar System . Its orbital period around the Sun of 88 days is the shortest of all the planets in the Solar System. It is named after the Roman deity Mercury, the messenger to the gods.

]]> 2018-01-22 18:47:11 UTC https://padlet.com/303947/cbglg3kqdzk9/wish/223493764 303947 https://padlet.com/303947/cbglg3kqdzk9/wish/223496412 Venus, the second planet from the sun, is named for the Roman goddess of love and beauty.]]> 2018-01-22 18:52:17 UTC https://padlet.com/303947/cbglg3kqdzk9/wish/223496412 303947 https://padlet.com/303947/cbglg3kqdzk9/wish/223498700 Earth, our home, is the third planet from the sun. It is the only planet known to have an atmosphere containing free oxygen, oceans of liquid water on its surface, and, of course, life.]]> 2018-01-22 18:55:19 UTC https://padlet.com/303947/cbglg3kqdzk9/wish/223498700 303947 https://padlet.com/303947/cbglg3kqdzk9/wish/223498897 Mars is the fourth planet from the sun. Befitting the red planet's bloody color, the Romans named it after their god of war.]]> 2018-01-22 18:55:37 UTC https://padlet.com/303947/cbglg3kqdzk9/wish/223498897 303947 https://padlet.com/303947/cbglg3kqdzk9/wish/223499987 Jupiter is the largest planet in the solar system. Fittingly, it was named after the king of the gods in Roman mythology.]]> 2018-01-22 18:57:15 UTC https://padlet.com/303947/cbglg3kqdzk9/wish/223499987 303947 https://padlet.com/303947/cbglg3kqdzk9/wish/223502306 Saturn is the sixth planet from the sun and the second largest planet in the solar system. Saturn was the Roman name for Cronus, the lord of the Titans in Greek mythology. Saturn is the root of the English word "Saturday."]]> 2018-01-22 19:00:42 UTC https://padlet.com/303947/cbglg3kqdzk9/wish/223502306 303947 https://padlet.com/303947/cbglg3kqdzk9/wish/223502765 The seventh planet from the sun with the third largest diameter in our solar system, Uranus is very cold and windy. The ice giant is surrounded by 13 faint rings and 27 small moons as it rotates at a nearly 90-degree angle from the plane of its orbit. This unique tilt makes Uranus appear to spin on its side, orbiting the sun like a rolling ball. ]]> 2018-01-22 19:01:25 UTC https://padlet.com/303947/cbglg3kqdzk9/wish/223502765 303947 https://padlet.com/303947/cbglg3kqdzk9/wish/223503295 Neptune is the eighth and farthest known planet from the Sun in the Solar System. In the Solar System, it is the fourth-largest planet by diameter, the third-most-massive planet, and the densest giant planet.]]> 2018-01-22 19:02:17 UTC https://padlet.com/303947/cbglg3kqdzk9/wish/223503295