Cell Size & Scale Crossword Puzzle

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Across
  1. 4. An atom that is the basic building block of life
  2. 5. A reproductive cell with a tail for swimming
  3. 8. A highly contagious virus that causes a red rash
  4. 9. A Y-shaped protein used to fight viruses
  5. 10. A molecule made of hydrogen and oxygen; makes up most of a cell
  6. 11. A virus that looks like a robot spider and attacks bacteria
  7. 13. The group of tiny, simple organisms that includes E. coli
  8. 15. A rod-shaped bacteria found in the human intestine
Down
  1. 1. The virus that causes the common cold
  2. 2. The scientific name for a simple cell with no nucleus
  3. 3. The virus responsible for the seasonal flu
  4. 6. A cell covered in tiny hairs called cilia
  5. 7. A pond organism that moves by oozing "false feet"
  6. 12. A simple sugar molecule used for energy
  7. 14. The largest human cell; it is visible to the naked eye