https://padlet.com/304971/8uxcacld20pa Made with big dreams en-us 2018-04-26 16:23:51 UTC 2026-01-17 16:51:51 UTC hello@padlet.com 304971 https://padlet.com/304971/8uxcacld20pa/wish/255726130 Igneous rock, or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or lava.]]> 2018-04-26 16:24:51 UTC https://padlet.com/304971/8uxcacld20pa/wish/255726130 304971 https://padlet.com/304971/8uxcacld20pa/wish/255726306 Sedimentary rocks are types of rock that are formed by the deposition and subsequent cementation of that material at the Earth's surface and within bodies of water.]]> 2018-04-26 16:25:13 UTC https://padlet.com/304971/8uxcacld20pa/wish/255726306 304971 https://padlet.com/304971/8uxcacld20pa/wish/255726361 Metamorphic rocks arise from the transformation of existing rock types, in a process called metamorphism, which means "change in form". The original rock is subjected to heat and pressure, causing profound physical or chemical change.]]> 2018-04-26 16:25:20 UTC https://padlet.com/304971/8uxcacld20pa/wish/255726361 304971 https://padlet.com/304971/8uxcacld20pa/wish/255726476 The rock cycle is a basic concept in geology that describes the time-consuming transitions through geologic time among the three main rock types: sedimentary, metamorphic, and igneous.]]> 2018-04-26 16:25:36 UTC https://padlet.com/304971/8uxcacld20pa/wish/255726476 304971 https://padlet.com/304971/8uxcacld20pa/wish/255726559 Weathering is the breaking down of rocks, soil, and minerals as well as wood and artificial materials through contact with the Earth's atmosphere, water, and biological organisms.]]> 2018-04-26 16:25:46 UTC https://padlet.com/304971/8uxcacld20pa/wish/255726559 304971 https://padlet.com/304971/8uxcacld20pa/wish/255726761 In earth science, erosion is the action of surface processes that removes soil, rock, or dissolved material from one location on the Earth's crust, and then transport it away to another location.]]> 2018-04-26 16:26:09 UTC https://padlet.com/304971/8uxcacld20pa/wish/255726761 304971 https://padlet.com/304971/8uxcacld20pa/wish/255726842 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.]]> 2018-04-26 16:26:20 UTC https://padlet.com/304971/8uxcacld20pa/wish/255726842 304971 https://padlet.com/304971/8uxcacld20pa/wish/255726999 The binding together of particles or other things by cement.]]> 2018-04-26 16:26:36 UTC https://padlet.com/304971/8uxcacld20pa/wish/255726999 304971 https://padlet.com/304971/8uxcacld20pa/wish/255727342  The process by which the porosity of a given form of sediment is decreased as a result of its mineral grains being squeezed together by the weight of overlying sediment or by mechanical means.]]> 2018-04-26 16:27:12 UTC https://padlet.com/304971/8uxcacld20pa/wish/255727342 304971 https://padlet.com/304971/8uxcacld20pa/wish/255727419 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.]]> 2018-04-26 16:27:20 UTC https://padlet.com/304971/8uxcacld20pa/wish/255727419