Earth science crossword puzzle

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Across
  1. 2. What is the thin, rocky outer layer of Earth?
  2. 4. bond What a bond that forms when atoms shares electrons?
  3. 5. number What is the number of neutrons and protons in the nucleus of an atom?
  4. 7. scale What is a series of 10 minerals used as a standard in determining hardness?
  5. 10. What is the same number of protons but different numbers of neutrons for a given element?
  6. 13. What is the kilometer thick layer of Earth?
  7. 15. Who study of the ocean and oceanic Phenomena?
  8. 17. A naturally occurring, inorganic crystalline material with a unique chemical composition?
  9. 19. Who study of the atmosphere and atmospheric phenomena?
  10. 20. What is the chemical combination of two or more elements?
  11. 22. rock What a rock formed by the crystallization a molten magma
  12. 23. A well tested and widely accepted view that explain certain observation facts?
  13. 25. Name the layer of Earth under both the atmosphere and the oceans?
  14. 28. What is the water portion of Earth physical environment?
  15. 29. What is the color of a mineral in powered form?
  16. 31. Interval What is the distance in elevation between adjacent contour line?
  17. 33. mass per unit volume of a substance usually expressed as grams per cubic centimeter?
  18. 34. What is the distance north or south?
  19. 35. line What is the name line on a Topographic map that indicates an elevation?
  20. 36. What is all life on Earth means?
  21. 39. number What is the number of protons in the nucleus of an atom?
  22. 41. What it the innermost layer of Earth?
Down
  1. 1. science What is the name for the group of science that deals with Earth and its neighbors in space?
  2. 2. form What is the external appearance of a mineral as determined by its internal arrangement of atoms?
  3. 3. What is an atom or a molecule that possesses an electrical charge?
  4. 4. bond What is a force that holds together atoms that form a compound?
  5. 6. What is the size group of interacting parts that form a complex whole?
  6. 8. What is the appearance or quality of light reflected from the surface of a mineral?
  7. 9. What does the science that examines Earth its form and composition?
  8. 11. rock What is a rock formed from the weathered products of preexisting rocks that have been transported, deposited compacted and cemented?
  9. 12. Any one of numerous minerals that have the oxygen and silicon tetrahedron as their basic
  10. 14. Who study of the universe?
  11. 16. A tentative explanation that is tested to determine if it is valid?
  12. 18. What is the distance east or west?
  13. 21. bond What a bond that forms when electrons are shares by metal ions?
  14. 24. map What is the name that represents Earths surface in three dimensions?
  15. 26. What is the resistance a mineral offers to scratching?
  16. 27. any break or rupture in rock along which no appreciable movement has taken place?
  17. 30. level one of several distinct regions around the nucleus of an atom where electrons are located?
  18. 32. What is a consolidated mixture of minerals?
  19. 35. What is the tendency of a mineral to break along planes of weak bonding?
  20. 37. oxygen tetrahedron What is a structure composed of four oxygen atoms surrounding a silicon atom which constitutes the basic building block of silicate minerals?
  21. 38. what is a substance that cannot be broken down into simpler parts?
  22. 40. bond What a bond that forms between negative and positive ions