https://padlet.com/305158/55kv9l499xip N/A en-us 2018-04-26 17:17:46 UTC 2023-04-29 22:53:51 UTC hello@padlet.com 305158 https://padlet.com/305158/55kv9l499xip/wish/255752699 Rocks formed by the cooling and solidifying of molten materials. Igneous rocks can form beneath the Earth 's surface, or at its surface, as lava. Note : Granite, solid volcanic lava, and basalt are examples of igneous rock.]]> 2018-04-26 17:18:36 UTC https://padlet.com/305158/55kv9l499xip/wish/255752699 305158 https://padlet.com/305158/55kv9l499xip/wish/255753330 Rock that has formed through the deposition and solidification of sediment, especially sediment transported by water, ice, and wind. Sedimentary rocks are often deposited in layers, and frequently contain fossils. Note : Limestone and shale are common sedimentary rocks.]]> 2018-04-26 17:19:53 UTC https://padlet.com/305158/55kv9l499xip/wish/255753330 305158 https://padlet.com/305158/55kv9l499xip/wish/255754337 A metamorphic rock is a type of rock which has been changed by extreme heat and pressure. Its name is from 'morph' , and 'meta'. The original rock gets heated and pressured. This causes profound physical and/or chemical change.

]]> 2018-04-26 17:22:00 UTC https://padlet.com/305158/55kv9l499xip/wish/255754337 305158 https://padlet.com/305158/55kv9l499xip/wish/255756283 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.]]> 2018-04-26 17:25:42 UTC https://padlet.com/305158/55kv9l499xip/wish/255756283 305158 https://padlet.com/305158/55kv9l499xip/wish/255757438 Definition of weathering. : the action of the weather conditions in altering the color, texture, composition, or form of exposed objects; specifically : the physical disintegration and chemical decomposition of earth materials at or near the earth's surface.]]> 2018-04-26 17:27:44 UTC https://padlet.com/305158/55kv9l499xip/wish/255757438 305158 https://padlet.com/305158/55kv9l499xip/wish/255758748 The gradual wearing away of land surface materials, especially rocks,sediments, and soils, by the action of water, wind, or a glacier. Usually erosion also involves the transport of eroded material from one place to another, as from the top of a mountain to an adjacent valley, or from the upstream portion of a river to the downstream portion.]]> 2018-04-26 17:29:57 UTC https://padlet.com/305158/55kv9l499xip/wish/255758748 305158 https://padlet.com/305158/55kv9l499xip/wish/255760637 A single bed of sedimentary rock, generally consisting of one kind of matter representing continuous deposition.]]> 2018-04-26 17:33:25 UTC https://padlet.com/305158/55kv9l499xip/wish/255760637 305158 https://padlet.com/305158/55kv9l499xip/wish/255761616 A metallurgical coating process in which a metal or alloy such as iron or steel is immersed in a powder of another metal, such as zinc, chromium,or aluminum, and heated to a temperature below the melting point of either. Cementation is often employed to increase resistance to oxidation.]]> 2018-04-26 17:35:25 UTC https://padlet.com/305158/55kv9l499xip/wish/255761616 305158 https://padlet.com/305158/55kv9l499xip/wish/255762686 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 17:37:52 UTC https://padlet.com/305158/55kv9l499xip/wish/255762686 305158 https://padlet.com/305158/55kv9l499xip/wish/255763452 The remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.]]> 2018-04-26 17:39:40 UTC https://padlet.com/305158/55kv9l499xip/wish/255763452