Words that start with Z

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 1. A belt-shaped region in the heavens on either side to the ecliptic (6)
  2. 2. The diploid cell resulting from the union of a haploid spermatozoon and ovum (6)
  3. 5. The branch of biology that studies animals (7)
  4. 6. Marrow squash plant whose fruit are eaten when small (8)
  5. 7. A ___ of letters and digits added to a postal address to aid in the sorting of mail (7)
  6. 9. Animal constituent of plankton (11)
  7. 10. A locally circumscribed place characterized by some distinctive features (4)
  8. 11. The act of rising upward into the air (4)
  9. 13. A fastener for locking together two toothed edges by means of a sliding tab (6)

Down

  1. 1. The point above the observer that is directly opposite the nadir on the imaginary sphere against (6)
  2. 2. A bluish-white lustrous metallic element (4)
  3. 3. An angular shape characterized by sharp turns in alternating directions (6)
  4. 4. To regulate housing in (5)
  5. 5. A lustrous grey strong metallic element resembling titanium (9)
  6. 8. Of or relating to or constituting ___ (8)
  7. 12. The sight setting that will cause a projectile to hit the center of the target with no wind blowing (4)