https://padlet.com/3043911/i1kevpkqiylg Yamila Castillo period2 en-us 2018-01-23 17:33:57 UTC 2026-01-06 03:07:25 UTC hello@padlet.com 3043911 https://padlet.com/3043911/i1kevpkqiylg/wish/223904191 The geologic time scale is a system of chronological dating that relates geological strata to time. It is used by geologists, paleontologists, and other Earth scientists to describe the timing]]> 2018-01-23 17:37:51 UTC https://padlet.com/3043911/i1kevpkqiylg/wish/223904191 3043911 https://padlet.com/3043911/i1kevpkqiylg/wish/223904642 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 17:38:21 UTC https://padlet.com/3043911/i1kevpkqiylg/wish/223904642 3043911 https://padlet.com/3043911/i1kevpkqiylg/wish/223905077 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 17:39:07 UTC https://padlet.com/3043911/i1kevpkqiylg/wish/223905077 3043911 https://padlet.com/3043911/i1kevpkqiylg/wish/223905565 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 17:40:01 UTC https://padlet.com/3043911/i1kevpkqiylg/wish/223905565 3043911 https://padlet.com/3043911/i1kevpkqiylg/wish/223905882 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. ... Earth formed around 4.54 billion years ago by accretion from the solar nebula]]> 2018-01-23 17:40:30 UTC https://padlet.com/3043911/i1kevpkqiylg/wish/223905882 3043911 https://padlet.com/3043911/i1kevpkqiylg/wish/223907418 Half-Life is a series of first-person shooter games developed and published by Valve. The major installments feature protagonist Gordon Freeman, a theoretical physicist who battles an alien invasion.]]> 2018-01-23 17:43:02 UTC https://padlet.com/3043911/i1kevpkqiylg/wish/223907418 3043911 https://padlet.com/3043911/i1kevpkqiylg/wish/223908841 a method of dating geological or archeological specimens by determining the relative proportions of particular radioactive isotopes present in a sample.]]> 2018-01-23 17:45:32 UTC https://padlet.com/3043911/i1kevpkqiylg/wish/223908841 3043911 https://padlet.com/3043911/i1kevpkqiylg/wish/223912893 Radiocarbon dating is a method for determining the age of an object containing organic material by using the properties of radiocarbon, a radioactive isotope of carbon. ]]> 2018-01-23 17:52:36 UTC https://padlet.com/3043911/i1kevpkqiylg/wish/223912893 3043911 https://padlet.com/3043911/i1kevpkqiylg/wish/223913467 Radioactive decay (also known as nuclear decay orradioactivity 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]]> 2018-01-23 17:53:36 UTC https://padlet.com/3043911/i1kevpkqiylg/wish/223913467 3043911 https://padlet.com/3043911/i1kevpkqiylg/wish/223913746 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. ]]> 2018-01-23 17:54:09 UTC https://padlet.com/3043911/i1kevpkqiylg/wish/223913746 3043911 https://padlet.com/3043911/i1kevpkqiylg/wish/223914775 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]]> 2018-01-23 17:55:28 UTC https://padlet.com/3043911/i1kevpkqiylg/wish/223914775 3043911 https://padlet.com/3043911/i1kevpkqiylg/wish/223915298 Venus is the second planet from the Sun, orbiting it every 224.7 Earth days. It has the longest rotation period of any planet in the Solar System and rotates in the opposite direction to most other planets. It has no natural satellites.]]> 2018-01-23 17:56:26 UTC https://padlet.com/3043911/i1kevpkqiylg/wish/223915298 3043911 https://padlet.com/3043911/i1kevpkqiylg/wish/223917183 Venus is the second planet from the Sun, orbiting it every 224.7 Earth days. It has the longest rotation period of any planet in the Solar System and rotates in the opposite direction to most other planets. It has no natural satellites.]]> 2018-01-23 17:59:50 UTC https://padlet.com/3043911/i1kevpkqiylg/wish/223917183 3043911 https://padlet.com/3043911/i1kevpkqiylg/wish/223918242 Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System after Mercury. ]]> 2018-01-23 18:01:48 UTC https://padlet.com/3043911/i1kevpkqiylg/wish/223918242 3043911 https://padlet.com/3043911/i1kevpkqiylg/wish/223918481 Jupiter is the fifth planet from the Sun and the largest in the Solar System. It is a giant planet with a mass one-thousandth that of the Sun, but two-and-a-half times that of all the other planets in the Solar System combined]]> 2018-01-23 18:02:10 UTC https://padlet.com/3043911/i1kevpkqiylg/wish/223918481 3043911 https://padlet.com/3043911/i1kevpkqiylg/wish/223919102 Saturn trine Uranus occurs three times between December 2016 and November 2017 which I will show at the end of this article.]]> 2018-01-23 18:03:20 UTC https://padlet.com/3043911/i1kevpkqiylg/wish/223919102 3043911 https://padlet.com/3043911/i1kevpkqiylg/wish/223919541 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]]> 2018-01-23 18:04:09 UTC https://padlet.com/3043911/i1kevpkqiylg/wish/223919541