Photosynthesis and Plant Nutrition

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Across
  1. 1. Heating milk to kill harmful microorganisms.
  2. 3. Substance that helps the body develop immunity against diseases.
  3. 7. Process by which green plants prepare food using sunlight.
  4. 10. Instrument used to observe distant celestial objects.
  5. 12. Increase in vibration when the frequency matches the natural frequency.
  6. 14. Tiny living organism visible only under a microscope.
  7. 17. Movement of water through a selectively permeable membrane.
  8. 18. Substance used to reduce friction between moving parts.
  9. 19. The "powerhouse" of the cell.
  10. 20. Chemical process of burning that releases heat and light.
Down
  1. 2. Minimum temperature needed for a substance to catch fire.
  2. 4. Medicine used to kill or stop the growth of bacteria.
  3. 5. Material that allows electricity to pass through easily.
  4. 6. Bouncing back of light or sound from a surface.
  5. 8. Jelly-like substance inside a cell where organelles are found.
  6. 9. Material that does not allow electricity to pass through easily.
  7. 11. Magnet produced by passing electric current through a coil.
  8. 13. Bending of light when it passes from one medium to another.
  9. 15. Force that opposes motion between two surfaces.
  10. 16. Green pigment that traps sunlight for photosynthesis.