Earth-Space Ch 3

Edit Answers
123456789101112131415161718
Across
  1. 2. Atoms with a different number of electrons and protons.
  2. 3. Outer part of the Earth.
  3. 6. Earth spinning on its axis
  4. 9. Middle layer of the Earth.
  5. 12. Outermost layer of the sun.
  6. 14. Center of an atom.
  7. 15. Smallest particle of an element.
  8. 16. Half of a sphere.
  9. 18. Line that divides the Earth into north and south hemispheres.
Down
  1. 1. Earth's movement around the sun.
  2. 4. Imaginary line that runs from the North to South Poles.
  3. 5. Innermost layer of the Earth.
  4. 7. Solid upper mantle material so hot it can flow.
  5. 8. Time it takes for a planet to rotate once on its axis
  6. 10. The crust and the upper mantle.
  7. 11. Periods of equal days and nights.
  8. 13. Substance that physical objects are made of.
  9. 17. Slabs of the Earth's lithosphere that can shift.