Planet Earth Crossword

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Across
  1. 2. Iron is a chemical element with symbol Fe and atomic number 26
  2. 4. the rigid, outermost layer of Earth, made up of the crust and the upper mantle
  3. 5. layer of a planet that sits between the crust and the core.
  4. 6. a liquid layer of Earth that's made up of iron and nickel
  5. 11. solid, made up of mostly iron and nickel
  6. 12. the thin, dense layer of rock that makes up the Earth's seafloor
  7. 13. marks the exact moment when half of Earth is tilted the farthest away from the sun
  8. 15. measures the distance north or south of the equator
  9. 16. places around the globe experience nearly equal periods of day and night
Down
  1. 1. crust that makes up the continents on Earth
  2. 3. occurs at the moment the earth's tilt toward the sun is at a maximum
  3. 7. the area around a magnet in which the effect of magnetism is felt
  4. 8. an event in which a planet's subsolar point passes through its Equator
  5. 9. measures distance east or west of the prime meridian
  6. 10. made of solid rock that floats on the mantle
  7. 14. imaginary line that divides the Earth into the Northern and Southern Hemispheres