Bill Nye: Cells

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Across
  1. 3. A type of organism whose cells lack cell walls and chloroplasts.
  2. 6. A structure made of different tissues working together.
  3. 7. Single-celled organisms that can be found almost everywhere.
  4. 8. The genetic material found in the nucleus.
  5. 9. A type of cell that sends messages through the body.
  6. 11. The body's largest organ.
  7. 12. Made up of many cells.
  8. 13. The jelly-like substance inside a cell.
  9. 16. A group of similar cells working together.
  10. 18. The job performed by a cell or organelle.
  11. 19. Any living thing.
  12. 20. A cell that carries oxygen throughout the body.
Down
  1. 1. The basic unit of life.
  2. 2. The thin layer that controls what enters and leaves a cell.
  3. 4. A specialized structure inside a cell with a specific job.
  4. 5. A type of organism whose cells have chloroplasts and cell walls.
  5. 8. The process by which one cell becomes two cells.
  6. 9. The control center of a cell.
  7. 10. What cells need to carry out their functions.
  8. 14. Cells are the building blocks of this.
  9. 15. A tool used to see cells that are too small to view with the naked eye.
  10. 17. Made up of only one cell.