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