6th grade Ch. 1 Sec. 1 Earth's Interior
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  • 1. Ch. 1 Sec. 1 Earth’s Interior
  • 2. Activity pg. 6 - How do Scientists Find Out What’s Inside Earth?
    • Without opening the canisters, what differences do you notice between them?
    • Apart from their appearance on the outside, are the canisters similar in any way?
    • How did you obtain this evidence?
    Canister Observations 1 2 3
  • 3.
    • direct evidence from rock samples
    • indirect evidence from seismic waves- earthquakes
    geologists use 2 types of evidence to learn about Earth’s interior
  • 4. Layers of Earth 3 main layers of Earth’s interior crust mantle
    • core -
    • inner core
    • outer core
  • 5.
    • The crust is a layer of solid rock that includes both dry land and the ocean floor.
    The Crust
  • 6. crust
      • layer of rock
      • forms Earth’s outer skin
      •  
  • 7. crust
      • 2 types of crust :
      • oceanic crust
        • made of basalt- dark rock w/ fine texture
      • continental crust
        • made of granite - rock w/ light color & coarse texture 
  • 8.  
  • 9.
    • Earth’s mantle is made up of rock that is very hot, but solid. Scientists divide the mantle into layers based on the physical characteristics of those layers.
    The Mantle
  • 10. mantle
      • layer of hot solid rock
      • from base of crust  3,000 km deep
  • 11. 2 parts of mantle:
      • lithosphere =
      • rigid layer of uppermost part of mantle & crust
      • floats on top of 2. asthenosphere
      • soft layer that flows
  • 12. core
      • 2 parts :
      • inner core- solid
      • outer core- liquid
      • currents in liquid outer core force solid inner core to spin  produces Earth’s magnetic field
  • 13.
      • made of iron & nickel
    core
  • 14.  
  • 15.  
  • 16.  
  • 17.  
  • 18. Creating Data Tables pg. 11 Depth Name of Layer What Layer Is Made Of 20 km 150 km 2,000 km 4,000 km 6,000 km
  • 19. How to make a model of the
    • In a Ziploc bag, combine 1/2 cup (1 bottle) of glue and 1/2 cup of warm water.
    • Add a few drops of food coloring to tint the mixture to the desired shade.
    • In a second Ziploc bag, combine 1 teaspoon of Borax and 1/2 cup of water. Mix thoroughly.
    • Pour the Borax mixture into the glue mixture. It will be very thick.
    • Knead slightly as the mixture starts to come together.
    ASTHENOSPHERE -SOFT LAYER OF THE MANTLE ON WHICH THE LITHOSPHERE FLOATS
  • 20. Edible Earth
    • Write a description of each layer of Earth.
    Crust= graham crackers Mantle= black cherry Jello Outer core= peach Jello Inner core= raspberry Jello
  • 21. Write a story about a journey to the center of Earth. Directions are on pg. 13 in your textbook.
    • 1-2 written pages + 1 page with a picture
    • Have a beginning, middle and end to your story
    • You must include at least 3 facts for each main layer (composition, depth, thickness, how the layers are separated into different layers,etc.)
  • 22. Activity: Core of the Matter
    • Build a 3-D model of the planets to depict the interiors of each. Punch a hole in a paper plate and spin it on a phonographic record player at 77 rpm. With different colored markers, draw the layers of the planet to correspond in scale to the planet’s interior. For example, for a simplified earth draw to scale a core, a mantle, and a crust. Repeat this on both sides of three plates. (On some turntables, an upside down plate will override the rotating section. To get a plate to spin upside down, first place a spare plate right-side-up on the player, then place the upside down plate on that.)
    • Cut and combine the plates so the three of them intersect perpendicular to each other on an X-, a Y-, and a Z-axis. To do this, cut a slit halfway across two plates and intertwine them. Cut a third plate in half. On each half cut a slit from the cut edge (what was formerly the center of the plate) halfway outward. Cut partial slits on the combined plates to accommodate the two halves. Hang and shabang.