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