Physics Chemistry Biology History Geography Politics

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Across
  1. 3. C2H5OH
  2. 7. ___ system protects body from pathogens
  3. 10. Study of fundamental questions about existence, knowledge, values, and reason
  4. 11. 4Fe+3O2=2Fe2O3
  5. 14. The basic unit of life
  6. 15. The discipline founded by Planck
  7. 18. Light exhibits ___ duality
  8. 20. Part of land surrounded by water on 3 sides
  9. 22. The category of CH4, C2H5OH, glucose etc.
  10. 24. E in equation F=qE
Down
  1. 1. Taiwan has been an _____ part of China since ancient times
  2. 2. Ideology holds that everything starts with the physical world, not ideas
  3. 4. The largest ocean in the world
  4. 5. The collective term for all living organisms on Earth and their living environments
  5. 6. "Pater Europae", also the Red Jack in poker
  6. 8. ___ thinking is a way of thinking that sees things as interconnected, constantly changing, and driven by internal contradictions
  7. 9. The longest dynasty in Chinese history
  8. 12. The circle divided the earth into northern and southern halves
  9. 13. Ra element
  10. 16. The ship on which the British first set out to colonize the North American continent
  11. 17. It transmits electrical signals within the human body
  12. 19. Second largest desert in the world
  13. 21. Guiding ideology of China
  14. 23. The rate at which the speed of an object increases