science

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Across
  1. 3. Substance speeding up a reaction without changing.
  2. 4. Distance between two consecutive wave crests.
  3. 7. & MotionGravity: Force pulling objects down toward the Earth.
  4. 10. Final substance created by a chemical reaction.
  5. 12. Signals sent as clear, separate pulses.
  6. 14. Bouncing back of light or sound waves.
  7. 15. Number of waves passing a point per second.
  8. 16. Substance made of different elements bonded together.
  9. 19. Positively charged particle inside the atomic nucleus.
  10. 22. Push or pull exerted upon an object.
  11. 23. Heat transfer through direct physical contact.
  12. 25. Tendency of objects to resist changing motion.
  13. 26. Total combined force acting on an object.
  14. 27. Negatively charged particle orbiting the atomic nucleus.
  15. 28. Measure of gravitational pull on an object.
  16. 30. Smallest basic unit of a chemical element.
  17. 32. Neutral particle located inside the atomic nucleus.
  18. 33. Total amount of matter inside an object.
  19. 34. Bending of light passing through different mediums.
  20. 35. Dense central core of an individual atom.
Down
  1. 1. Heat energy created by moving atomic particles.
  2. 2. Substance made entirely of one atom type.
  3. 5. Taking in of light energy by matter.
  4. 6. Heat transfer traveling through electromagnetic waves.
  5. 8. Rate at which an object changes velocity.
  6. 9. Man-made material created from natural resources.
  7. 11. Energy stored due to position or shape.
  8. 13. Force resisting motion between two touching surfaces.
  9. 17. Height of a wave showing its strength.
  10. 18. Starting material used in a chemical reaction.
  11. 20. Solid that forms out of a liquid solution.
  12. 21. Heat transfer through moving fluids or gases.
  13. 24. Speed of an object in a specific direction.
  14. 29. & Waves Kinetic: Energy an object possesses due to motion.
  15. 31. Two or more atoms bonded together chemically.