8th Grade Science Vocabulary

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Across
  1. 1. the innermost layer of the sun
  2. 4. the spinning of an object on its own internal axis
  3. 7. mass divided by volume
  4. 8. sugar
  5. 10. occurs during full and new moon phases
  6. 12. subatomic particle with a positive charge
  7. 13. has a pH lower than 7
  8. 20. different version of the same gene
  9. 21. earth passes directly between the sun and the moon casting a shadow on the moon
  10. 22. body system that contains bones
  11. 25. type of mixture that is uniform throughout
  12. 27. when the same scientist conducts multiple trials of the same experiment
  13. 28. variable that is measured in an experiment
  14. 32. all the earths water
  15. 34. provides structure for plant cells
  16. 36. the closest planet to the sun
  17. 38. subatomic particle with a negative charge
  18. 39. model that places the sun at the center of the solar system
  19. 40. coldest star color
  20. 41. type of mixture where the substances are not evenly mixed
  21. 42. the fundamental building block of all life
  22. 45. the continuous process by which carbon moves through earth's land, ocean, atmosphere, and living things
  23. 46. the total distance that a beam of light travels through in one earth year
  24. 51. type of reproduction that only requires one parent
  25. 52. the organelle in which photosynthesis takes place
  26. 53. the movement of one object in a circular motion around another object
  27. 54. the short term state of the atmosphere
  28. 55. heat transfer through touch
  29. 56. water falling from the sky
  30. 58. the force of attraction between 2 objects with mass
  31. 59. organism that can make its own food
  32. 62. the average distance from the earth to the sun
  33. 64. testable prediction for a scientific question
  34. 65. the process in which a liquid changes into a gas
  35. 66. organism that cannot make its own food
  36. 67. moon passes directly between the earth and the sun casting a shadow on the earth
  37. 68. controls what enters and exits the cell
Down
  1. 1. output of cellular respiration
  2. 2. variable that is changed in an experiment
  3. 3. a group of similar cells that work together to perform a specific function
  4. 5. model that places the earth at the center of the solar system
  5. 6. anything that has mass and occupies space
  6. 9. all the earths ice
  7. 11. occurs during 1st and 3rd quarter moon phases
  8. 14. the green pigment in plant cells that absorbs sunlight
  9. 15. row on the periodic table
  10. 16. when a different scientist repeats the experiment of another scientist
  11. 17. pure substance made of one type of atom
  12. 18. type of reproduction that requires two parents
  13. 19. body system that helps bones with movement
  14. 23. change that forms a new substance and cannot be reversed
  15. 24. the long term average patterns of the atmosphere
  16. 26. a push or pull exerted on an object by another object or person
  17. 29. where the DNA is stored in a cell
  18. 30. hottest star color
  19. 31. the star at the center of our solar system
  20. 33. the result of a chemical reaction
  21. 35. states that matter cannot be created or destroyed
  22. 36. the amount of matter in an object
  23. 37. any substance at the beginning of a chemical reaction (go into the reaction)
  24. 43. body system that moves nutrients through blood
  25. 44. input of photosynthesis
  26. 47. column on the periodic table
  27. 48. all living things on earth
  28. 49. two or more atoms chemically bonded
  29. 50. the basic building block of all matter
  30. 57. the organelle in which cellular respiration takes place
  31. 60. has a pH greater than 7
  32. 61. subatomic particle with no charge
  33. 63. cell division process that results in two genetically identical