8th Grade Crossword

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Across
  1. 4. an event or process that leads to a result or change
  2. 8. a longer piece of DNA that contains many genes
  3. 11. a self-contained unit on an aircraft, spacecraft, vehicle, or vessel that can be detached for a particular function
  4. 12. a random change to a gene that sometimes results in a new trait
  5. 15. having died out completely and no longer alive anywhere on Earth
  6. 16. a type of molecule that genes and chromosomes are made of (two words, no spaces)
  7. 18. an animal that is hunted or killed by another animal for food
  8. 20. a moon phase that looks like a full circle from Earth (two words, no spaces)
  9. 21. a characteristic that all members of a species have
  10. 23. the amount of matter that makes up an object
  11. 26. an organism produced as a result of reproduction
  12. 28. the nearly circular path a smaller object travels around a larger object
  13. 29. the ability to make things move or change
  14. 31. living things, such as plants, animals, and bacteria
  15. 33. when the Moon is completely dark (two words, no spaces)
  16. 34. the moment when two objects hit each other
  17. 35. process by which the distribution of traits in a population changes over many generations (two words, no spaces)
  18. 41. the space around a magnet in which magnetic forces can act on objects (two words, no spaces)
  19. 42. one of the two opposite ends of a magnet (two words, no spaces)
  20. 44. a group of the same type of organism living in the same area
  21. 45. a type of magnet in which the magnetic field is produced by an electric current
  22. 49. an instruction for making a protein molecule
  23. 51. a force between an object and the surface it is moving over
  24. 53. a type of molecule that performs important functions inside organisms (two words, no spaces)
  25. 54. the energy that an object has because it is moving (two words, no spaces)
Down
  1. 1. when a huge number of species on Earth die out completely around the same time (two words, no spaces)
  2. 2. any difference in traits between individual organisms
  3. 3. a set of interacting parts forming a complex whole
  4. 5. an animal that hunts and kills other animals for food
  5. 6. a rocky sphere that travels around a planet
  6. 7. a moon phase that looks like a half-circle from Earth (two words, no spaces)
  7. 9. the star that is the main source of light at the center of our solar system
  8. 10. a push or a pull that can change the motion of an object
  9. 13. a moon phase that looks like less than half a circle from Earth (two words, no spaces)
  10. 14. a moon phase that looks like more than half a circle from Earth (two words, no spaces)
  11. 17. to apply a force
  12. 19. to push objects away from each other
  13. 22. everything (living and nonliving) that surrounds an organism
  14. 24. the sun, the planets that orbit the sun, and other objects that orbit the sun (two words, no spaces)
  15. 25. the energy that is stored in an object or system (two words, no spaces)
  16. 27. a group of individuals born and living at about the same time
  17. 30. the amount of time it takes for a planet to complete one orbit around a star or stars
  18. 32. something that connects opposite magnetic poles and represents the strength and direction of the field (three words, no spaces)
  19. 34. a way of hiding by looking the same as the background
  20. 36. to move from one object to another or one place to another
  21. 37. a related organism from a previous generation
  22. 38. to shine light on an object and make it visible
  23. 39. the number of individuals with each trait in a population
  24. 40. the ability to make things move or change
  25. 43. the border between light and dark on the Moon
  26. 46. a machine that can convert kinetic energy into electrical energy
  27. 47. a moon phase in which the Moon is not visible from Earth (two words, no spaces)
  28. 48. to change from one type of energy to another
  29. 50. anything that has mass and takes up space
  30. 52. how fast an object is moving, or distance over time