Layers of the Earth

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Across
  1. 3. the layer of the Earth that ranges from 4,000 to 9,000 degrees (2 words)
  2. 4. the inner and outer ____are rarely referred to as one
  3. 7. the name of the temperature scale used to measure Earth's heat is _________________ continentalcrust the coolest layer of the Earth (2 words)
  4. 10. the Earth's surface is 70% ____________
  5. 13. the outer core and the _____ are cooler on the top than on the bottom
  6. 14. a source of 'fresh' water on Earth
  7. 17. the thinnest layer of the Earth (2 words)
  8. 18. the iron in the inner core is in _____ form
  9. 20. the fraction 1/5 = _____%
  10. 21. the Earth's mantle ranges from 1,800 to 4 _________ degrees
  11. 22. the continential crust is made up primarily of ____
  12. 23. the layer of Earth that accounts for almost 1/2 of the planet
Down
  1. 1. there are four distinct _______of the Earth
  2. 2. the inner core and the _________ are responsible for the Earth's magnetism (2 words)
  3. 5. the mantle of the Earth accounts for almost ____ of the planet's mass
  4. 6. the hottest layer of the Earth (2 words)
  5. 8. the movement of plates in the Earth's mantle is commonly known as ____________ (2 words)
  6. 9. the full name of the element that helps create the Earth's magnetic field (2 words)
  7. 11. what the core at the center of the earth is called
  8. 12. 'tectonic shift' refers to the movement of _______
  9. 15. the iron in the outer core is in ________ form
  10. 16. the oceanic and continental_____ are often referred to as one
  11. 19. what the units of measure that are used to measure the Earth's heat are called
  12. 23. the thickness and the depth of the Earth are measured in _________