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Story in the Rocks!!! 

Story in the Rocks!!! . By: Kara Brueggemeier  , Ann Wolf  , and Tristan McMullen . Weathering. Chemical weathering – a reaction Physical weathering – it is carving ex. The Grand Canyon Sediment is the result of weathering. Erosion. Running water is the main agent of erosion

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Story in the Rocks!!! 

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  1. Story in the Rocks!!!  By: Kara Brueggemeier , Ann Wolf , and Tristan McMullen 

  2. Weathering • Chemical weathering – a reaction • Physical weathering – it is carving ex. The Grand Canyon • Sediment is the result of weathering.

  3. Erosion • Running water is the main agent of erosion • The Grand Canyon was formed by the Colorado River • Gravity causes eroded material to slide downhill • Sheet erosion is when rain washes away a layer of topsoil

  4. Weathering and Erosion Vocabulary • Erosion – the lifting and physical removal of rock particles, dirt, and sand • Deposition – the laying down of matter by a natural process • Sediment – solid fragments of inorganic or organic materials that come from weathering • Gravity – the force of attraction that exists between two particles of matter or objects

  5. The Rock Cycle • It is the cycle that rocks go through • 3 different ways are cooling, crystallization, and melting. • 3 types are: Sedimentary, Igneous, and Metamorphic.

  6. Igneous Rock • It is rock that is formed from cooling lava • One type is extrusive igneous rock – it is rock that forms on the outside of volcanoes • Another is intrusive igneous rock – it is rock that hardens inside of the volcano

  7. Sedimentary Rock • It is a rock that is made up of other rocks and particles of sand. • It is formed when deposited sediment hardens • Fossils are most likely found in this rock

  8. Metamorphic Rock • It is rocks that were changed by heat and pressure. • They used to be sedimentary and igneous rock

  9. Law of Superposition • It states that the oldest rocks are normally on the bottom layers, and the more recent ones are on the top. • If there where ocean animal fossils on a hill it would mean that that area was once an ocean

  10. Geologic Time Scale • It is a time scale that shows the different eras and what animals lived during that time period.

  11. Fossils!!!!!!!!  • It is the remains of a dead organism • Fossils are, most likely, found in sedimentary rock • The law of superposition tells us how old a fossil is

  12. Website Resources • Vulcan.wr.usgs.gov/livingwith/volcanicpast/notes/igneous_rocks.html – provides a lot of in-depth info on igneous rocks • Geomaps.wr.usgs.gov/parks/rxmin/rock2.html – because it has a lot of info • Some websites we liked and thought were very informative were • http://www.answers.com because it was neat and easy to read • -weathering and erosion link- filled with information and very straight forward.

  13. The END!!!!!!!!!                                                                                                                        

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