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SOS PROFESSOR-ATIVIDADES: O ciclo das rochas

ambientech.org La geosfera, la parte sólida del planeta. El ciclo de las rocas, los procesos geológicos internos y externos. El ciclo geológico: la gliptogénesis, la litogénesis y la orogénesis. La erosión, el transporte, la formación de capas de sedimentos. Las rocas sedimentarias. Algunos ejemplos de rocas sedimentarias.

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Tiger Iron (Stromatolite) ... Stromatolites are laminated fossils formed by blue-green algae and sediment. Sediment sticks to the surface of the living algae, forming a crust. In turn, the algae grows through the sediment to form a new layer of living matter. A new film of sediment sticks to the algae and so on. The resulting structure looks like a mound. In cross section, each layer can be seen. Stromatolites are the most abundant fossils known from the Precambrian

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Types of Rocks Sort Cut and Paste

Assess what your students know about rocks with this simple Rocks Sort! Students…

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10 Methods Scientists Use to Date Things

Left and right, archaeologists are radiocarbon dating objects: fossils, documents, shrouds of Turin. They do it by comparing the ratio of an unstable isotope, carbon-14, to the normal, stable carbon-12. All living things have about the same level of carbon-14, but when they die it begins to decay at uniform rate—the half-life is about 5,700 years, and you can use this knowledge to date objects back about 60,000 years. However, radiocarbon dating is hardly the only method that creativ

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Ciclo das rochas

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SOS PROFESSOR-ATIVIDADES: O ciclo das rochas - vídeo

Ciclo das rochas

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Ciclo de las rocas …

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