Earth quiz

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Across
  1. 7. The day of December 21, the shortest day, and the sun sets in the East and West.
  2. 9. The bending of waves as they pass from material of density to another.
  3. 11. The day June 21, the longest day during the year, and the sun sets in the East and West.
  4. 12. 15-40 miles thick and less dense due to the granite, there are elements of oxygen, silicon, and aluminum.
  5. 13. Extremely hot temperature, and it’s primarily liquid.
  6. 14. Where volcanoes get their lava.
  7. 16. There are two types oceanic and continental and has elements of oxygen, silicon, and aluminum or magnesium.
Down
  1. 1. The point of orbit of a planet or another astronomical body, which is closest to the sun.
  2. 2. Part of the crust and upper mantle.
  3. 3. Caused by the iron in the outer core creating an electric current by convection.
  4. 4. Waves that travel through the earth or along the earths surface.
  5. 5. The inner most part of the earth, its solid, and untouched by man.
  6. 6. day 4 minutes shorter than a solar day, and it’s the time until distant stars are in the same position.
  7. 8. Transverse waves that travel through the earth the slowest.
  8. 10. Boundary between crust and upper mantle.
  9. 15. Compressional waves that travel through the earth the fastest.