8th Grade Science Terms

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Across
  1. 2. Heat transfer by movement of fluid
  2. 3. Substance made of one type of atom
  3. 6. Force resisting motion
  4. 7. Object stays at rest or motion unless acted on
  5. 10. Chart organizing elements by properties
  6. 11. Force equals mass times acceleration
  7. 14. Liquid water turns into vapor
  8. 18. Speed with direction
  9. 21. Every action has an equal reaction
  10. 22. Mass per unit volume
  11. 24. Vapor turns into liquid
  12. 26. Total of protons and neutrons
  13. 27. Bouncing of light off surfaces
  14. 28. Negatively charged particle outside nucleus
  15. 30. Neutral particle in nucleus
  16. 34. Change in position over time
  17. 35. Transfer of energy through matter or space
  18. 36. Energy from heat
  19. 37. Force that pulls objects toward Earth
  20. 38. Smallest unit of matter
  21. 39. Form of electromagnetic radiation
  22. 40. Layer of gases around Earth
Down
  1. 1. Change in velocity
  2. 4. Bending of light
  3. 5. Change that does not alter composition
  4. 8. Wave caused by vibrations
  5. 9. Positively charged particle in nucleus
  6. 12. Change that forms a new substance
  7. 13. Water falls from clouds
  8. 15. Heat transfer through waves
  9. 16. Wave that needs a medium
  10. 17. Number of protons in an atom
  11. 19. Heat transfer through direct contact
  12. 20. Push or pull on an object
  13. 23. Wave that can travel through space
  14. 25. Substance made of two or more elements chemically combined
  15. 29. Energy of motion
  16. 31. Ability to do work
  17. 32. Two or more atoms bonded together
  18. 33. Stored energy