Science

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Across
  1. 4. a resource that will not run out
  2. 5. a device that transforms motion energy into electrical energy
  3. 8. a group of mountains
  4. 9. when two objects hit each other and transfer energy
  5. 13. a behavior that requires experience and memory
  6. 16. a substructure that receives information and sends it to the brain
  7. 17. to give off light (from a light source)
  8. 18. a series of steps that allows sensed information to result in an appropriate response
  9. 23. necessary to make something happen
  10. 25. the height of a wave, measured from the baseline (still water line) to the wave’s peak
  11. 26. a simple, automatic response to something that happens
  12. 29. a type of motion where matter moves quickly back and forth or up and down
  13. 30. details about an environment that an animal can sense
  14. 32. a regular pattern of motion that transfers energy across a distance
  15. 35. to detect information about an environment using external structures with receptors
  16. 36. weathered rock carried by wind, water, ice, or gravity
  17. 37. a barrier built across a river
  18. 39. signs that show energy is present (sound, light, temperature change, motion)
  19. 40. a part of the body that serves a specific purpose
  20. 41. a resource that may run out
  21. 42. the distance an object moves in a certain amount of time
Down
  1. 1. when one form of energy changes into another
  2. 2. the distance from one wave peak to the next
  3. 3. illumination when light rays from a source reflect off an object to the eye
  4. 6. the appearance of objects to the eye with respect to their relative distance and position
  5. 7. a behavior that occurs without having to learn it
  6. 10. a behavior that results from sensing information about an environment
  7. 11. a process that breaks rock into smaller pieces
  8. 12. the purpose of a structure to help an organism survive, grow, or reproduce
  9. 14. a unique, important part
  10. 15. a group of objects that interact
  11. 19. how quickly or slowly erosion occurs
  12. 20. a way organisms receive information about their environments
  13. 21. when light shines on an object
  14. 22. a behavior that an animal performs without being taught
  15. 24. a map with raised land features
  16. 27. when light rays from a source reflect off one or more components of a system before reflecting off an object to the eye
  17. 28. a model of light that represents the direction light can travel
  18. 31. a big stripe in Earth’s surface
  19. 33. a structure that helps an organism gather information about its environment
  20. 34. the movement of energy from one part of a system to another
  21. 38. a process that moves weathered rock