1 / 33

The Rock Cycle

The Rock Cycle. By Your Name Here. Rocks are hard substances found in and on the earth’s crust. Rocks are made up of minerals, solids that can form crystals. Gypsum, graphite, flint, and mica are minerals. .

fadey
Télécharger la présentation

The Rock Cycle

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The Rock Cycle By Your Name Here

  2. Rocks are hard substances found in and on the earth’s crust.

  3. Rocks are made up of minerals, solids that can form crystals. Gypsum, graphite, flint, and mica are minerals.

  4. Crystals have definite shapes with flat surfaces and sharp edges. Diamonds, rubies, and quartz are crystals.

  5. Some minerals are metals, malleable and ductile substances which conduct electricity.

  6. Iron, copper, aluminum, silver, and gold are metals.

  7. Rocks are formed when magma from the earth’s mantle rises toward the earth’s surface.

  8. Magma which cools slowly inside the earth forms intrusive igneous rock such as granite.

  9. Magma which erupts from a volcano and cools quickly forms extrusive igneous rock such as pumice and obsidian.

  10. The igneous rock may be physically weathered by wind.

  11. The igneous rock may be also physically weathered by running water.

  12. The igneous rock may be physically weathered by rapid temperature changes in deserts.

  13. Germinating seeds and expanding plant roots may also physically weather rock.

  14. Water which freezes in cracks may also push apart and weather rocks.

  15. Other types of rock may also be physically or chemically weathered.

  16. Chemical weathering occurs when acids from rainwater breakdown rock.

  17. Acids from lichens and moss can also chemically weather rock.

  18. Weathered bits of rock called sediments are moved by erosion.

  19. Rivers, glaciers, and wind deposit the sediment in layers.

  20. The layers press together to form sedimentary rock.

  21. Sandstone is an example of sedimentary rock.

  22. Shale, compressed mud, is another type of sedimentary rock.

  23. A conglomerate is a sedimentary rock made up of pebbles and sand.

  24. Limestone is a sedimentary rock made up of shells and the skeletal remains of sea creatures.

  25. The sedimentary rock is buried over a long period of time.

  26. The buried rock is changed by extreme heat and pressure.

  27. The changed rock is called metamorphic rock.

  28. Marble is a metamorphic rock from changed limestone.

  29. Slate is a metamorphic rock from changed shale.

  30. The igneous rock granite can be changed into the metamorphic rock gneiss.

  31. The movement of tectonic plates forces igneous, sedimentary, and metamorphic rock toward the mantle.

  32. These rocks melt and cool to become igneous rock.

  33. The rock cycle begins again.

More Related