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This year middle school science launches into a study of our physical world and its laws! Carlisle Christian Academy's 6th, 7th and 8th graders are learning about chemistry, waves, forces and electricity. We love to get our hands dirty and minds engaged with experiments and experiences. Join us here on our blog to see what we are doing in class! You can contact Mrs. Tiday at ctiday@carlislechristian.org.

Thursday, October 20, 2011

Chapter 5 - Plate Tectonics Vocab


Here is the vocabulary from our chapter and a few pictures to help you to review :)  Remember that this is all recorded in your notes just the way that I wrote it on the board.  You have learned SOOOOO much!  Good work :)


(Double click images to enlarge them)

  1. Seismic waves - waves that travel through the earth when there is an earthquake
  2. pressure - the result of force pressing on an area
  3. crust - the thin outer layer of rock around the earth.  ~5-40 km thick
  4. basalt - the main rock found in the crust on the ocean floor
  5. granite - the main rock that makes up the crust in areas of dry ground
  6. mantle - the three layers between the crust and the core
  7. lithosphere - the top layer of mantle under the crust.  It is hard like the crust is.
  8. asthenosphere - the middle layer of the mantle.  It is hot and moves lie toothpaste.
  9. outercore - made of liquid molten metal.  Mostly iron and nickel.
  10. innercore - made of solid hot metal.  Mostly iron and nickel.

  1. radiation  - the movement of heat through empty space
  2. conduction -  the movement of heat through solids
  3. convection -  the movement of heat through liquids and gasses
  4. density - the amount of mass in a certain amount of volume.

  1. convection currents - the movement of warm particles up while cold particles move down which creates a flow of material
  2. continental drift - the movement of the continents as the lithosphere slides on the Asthenosphere
  3. Pangea - the name given to the large land mass that is formed if all continents are together in one area
  4. fossil - the remains of dead plants and animals.  Fossil remains provide evidence for the concept of continental drift.
  5. mid-ocean ridges - long mountain-like ranges under the ocean where new sea floor is created by magma.
  6. sonar -  technology that uses sound waves to map the ocean floor
  7. sea-floor spreading - the continual growth of the ocean floor at the mid-ocean ridges which causes the continents to move
  8. deep-ocean trenches - the location of subduction near the coastlines of the continents
  9. subduction - the return of the ocean floor to the mantle near the coastline of a continent

  1. plate - the broken pieces of lithosphere that ride on the asthenosphere.
  2. scientific theory - a proposed idea that takes evidences into consideration in order to solve a problem
  3. plate tectonics - the theory that explains how the continents are able to move on plates due to convection currents in the mantle

  1. fault – the space between two plates
  2. divergent boundary – the edge of plates that are moving apart
  3. rift valley – A place in Africa where the plates are moving apart and creating a valley
  4. convergent boundary – the edge of plates that are moving together
  5. transform boundary – the edge of plates that are sliding past each other.


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