Focus on Science

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 1. A slender or elongated structure that supports a plant or fungus or a plant part or plant organ (4)
  2. 5. The usually underground organ that lacks buds or leaves or nodes (4)
  3. 7. The light horny waterproof structure forming the external covering of birds (plural) (8)
  4. 9. The sensation that results when olfactory receptors in the nose are stimulated by particular (5)
  5. 12. To perceive via the auditory sense (4)
  6. 15. An instance of visual perception (5)
  7. 16. That part of the central nervous system that includes all the higher nervous centers (5)

Down

  1. 2. Physical activity that keeps you fit (8)
  2. 3. Green parts of a tree that fall in autumn (6)
  3. 4. The part of the earth's surface consisting of humus and disintegrated rock (4)
  4. 6. A general conscious awareness (plural) (6)
  5. 8. The sensation that results when ___ buds in the tongue and throat convey information about (5)
  6. 10. What lets us see; the opposite of dark (5)
  7. 11. Dense coat of fine silky hairs on mammals (3)
  8. 13. A mixture of gases required for breathing (3)
  9. 14. The star our planet orbits (3)