Scientific Discoveries and Inventions 8

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Across
  1. 3. "A hypothetical particle thought to mediate the force of gravity."
  2. 4. "A change in DNA that can lead to genetic diversity or disease."
  3. 7. "Organisms whose cells contain a nucleus and organelles."
  4. 8. "Irregular motion in fluid dynamics, often experienced in air travel."
  5. 13. "The process by which plants produce food from sunlight."
  6. 16. "The movement of water across a semi-permeable membrane."
  7. 17. "A chemical reaction involving the loss of electrons, often producing rust."
  8. 18. "The study of cells, a fundamental area of biology."
  9. 19. "The process of combining atomic nuclei to release energy, as in stars."
Down
  1. 1. "Organic material from plants and animals used as an energy source."
  2. 2. "A technique for dating ancient materials by measuring carbon isotopes."
  3. 5. "A cell that transmits nerve impulses in the nervous system."
  4. 6. "An instrument that separates light into a spectrum for analysis."
  5. 9. "The study of movement and mechanics in biological systems."
  6. 10. "A close and often long-term interaction between different species."
  7. 11. "The study of air movement around objects, crucial in designing airplanes."
  8. 12. "A technology using high-frequency sound waves to image internal structures."
  9. 14. "A semiconductor device crucial to modern electronics."
  10. 15. "The occurrence of different forms among individuals in a population."
  11. 18. "A substance capable of causing cancer in living tissue."