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Rocks

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Rocks

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    1. Rocks Review game Answers

    2. Describe 2 pathways a sedimentary rock can take to become an igneous rock Heat & pressure changes it into a metamorphic rock, then undergoes melting to form an igneous rock A sedimentary rock undergoes melting to become an igneous rock

    3. 2) What step in the rock cycle helps metamorphic rock to form? Heating, pressure, & chemicals

    4. 3) Describe 2 pathways a igneous rock can take to become a metamorphic rock Undergoes heat & pressure to become metamorphic rock Is weathered, eroded, deposited, compacted, and cemented to become a sedimentary rock, then undergoes heat & pressure to become metamorphic rock

    5. 4) What step helps turn any kind of rock into a sedimentary rock? - A rock Is weathered, eroded, deposited, compacted, and cemented to become a sedimentary rock

    6. 5) A sedimentary rock made up of rounded fragments of other rocks is called: Conglomerate

    7. 6) What step in the rock cycle would be required to change gneiss into sandstone? Undergoes erosion to become sedimentary rock

    8. 7) A series of processes on Earth's surface and interior that slowly changes rocks from one kind to another is called The rock cycle

    9. 8) The texture of a metamorphic rock that has grains arranged in parallel layers is described as Foliated

    10. 9) Where does the heat that changes a rock into metamorphic rock come from The mantle

    11. Rocks are changed into metamorphic rock through what ways? Heat, pressure, & chemicals

    12. Rocks formed by things that were once alive are called what? Organic Rocks

    13. How are clastic sedimentary rocks formed? - The sediments are compacted and glued together (cementation)

    14. Describe the process of cementation as it applies to sedimentary rocks. Dissolved minerals that are left behind after water evaporates form the glue that keeps the sediments together

    15. Describe deposition. - When eroded material settles out of wind or water

    16. Describe erosion. - The transportation of weathered rock and soil to a new location

    17. Some igneous rocks have a porphyritic texture. Describe a porphyritic texture. - A porphyritic texture has large grains scattered on a background of very small grains. It indicates that a rock was cooling slowly, then cooled quickly

    18. What is the most abundant intrusive rock? Granite

    19. What is the most abundant extrusive rock Basalt

    20. Describe a coarse grained rock. - A rock that has visible easy to see grains

    21. How do geologists determine a rock�s texture? - Size, shape, and arrangement of its grains

    22. 21) A metamorphic rock that has grains arranged in bands is said to be what? - Foliated: an example is gneiss

    23. Give 2 examples of a clastic rock. Breccia, made up of jagged sediments Conglomerate, made up of rounded sediments

    24. 23) Sandstone changing to quartzite is an example of what process? - Metamorphism

    25. 24) During the rock cycle, forces inside Earth can push rock down toward the heat of the mantle, and produce what type of rock? - Metamorphic rock

    26. 25) Label the figure:

    27. 26) The amount of space between particles of soil is known as Porosity

    28. 27) How easily water drains through a soil is known as Permeability

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