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Three types of Rocks

Three types of Rocks. Aim : What is a mineral?. Do Now: 1. What is a mineral? 2. State at least two characteristics of a mineral. Guess the properties of ROCKS. Guess the properties of ROCKS. Guess the properties of ROCKS. Guess the properties of ROCKS. 12/21/2017.

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Three types of Rocks

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  1. Three types of Rocks

  2. Aim: What is a mineral? • Do Now: • 1. What is a mineral? • 2. State at least two characteristics of a mineral.

  3. Guess the properties of ROCKS

  4. Guess the properties of ROCKS

  5. Guess the properties of ROCKS

  6. Guess the properties of ROCKS

  7. 12/21/2017 AIM: What are three types of rock? • Do now: Where are rocks from? How would you classify rocks?

  8. 01/02/2018 AIM: What are three types of rock? • Do now: Take out your ROCK NOTE. What are three types of rocks? How do we classify rocks?

  9. ROCK • A rock is: • A solid • Naturally occurring • Is made up of minerals or mineral like matter.

  10. CompositionSome rocks are composed of just one mineral. Most rocks are a solid mixture of several minerals.

  11. Rocks are classified by how they are formed. • There are three basic groups, igneous, sedimentary, and metamorphic.

  12. Igneous Rock • Igneous rocks are formed from cooling magma. They are made of large or small crystals that are spread evenly throughout the rock. • Color: light or dark, but usually light gray to black. There may also be pink, yellow, or black crystals in large grained rocks. • Characteristics: Bubbles sometimes form if the rock cools very quickly.

  13. Igneous Rock

  14. Where can we find Igneous rock? • Igneous rocks are found at the base of a volcano.

  15. Exit slip • Q: How is a igneous rock formed? Where does it come from?

  16. Sedimentary Rock • Sedimentary rocks are pressed or cemented together from the grains that weather from other rocks. • Color: any color with very fine or large sandy grains. • Characteristics: They often have very clear layers that are easy to break apart. Fossils may be embedded in the rock.

  17. Sedimentary Rock

  18. Fossils in Sedimentary Rock

  19. Where can we find Sedimentary rock? • In many environments including oceans, rivers and deserts. 

  20. Metamorphic Rock • Metamorphic rocks are formed from other rocks when they are put under great pressure and heat. • Color: from pure white to solid black. • Characteristics: Often they have fine grains of mica that flake off. They may also have layers of different minerals that are wavy like ribbons through the rock. They are usually very hard and the layers do not break apart easily.

  21. Metamorphic Rock

  22. Where can we find Metamorphic rock? • In mountain ranges where high pressures squeezed the rocks together • Himalayas, Alps, and the Rocky Mountains.

  23. What type of rock might contain evidence of past life? • What type of rock contains large crystals? • What type of rock might contain holes from gases? • What type of rock has visible FLAT layers? • What type of rock changes by heat/pressure? • What type of rock contains rounded grains? • What type of rock has ribbon like bonding/layers?

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