Science

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 3. Nutrient in meat and beans that builds muscle (7)
  2. 4. An organelle found in the cytoplasm of most cells (8)
  3. 6. The protoplasm of a cell excluding the nucleus (9)
  4. 10. The temperature below which a liquid turns into a solid (13)
  5. 11. The act of making and recording a measurement (11)
  6. 12. A terrestrial or aquatic flesh-eating mammal (9)
  7. 13. A fourth state of matter distinct from solid or liquid or gas and present in stars and fusion (6)
  8. 14. Any of a group of green pigments found in photosynthetic organisms (11)
  9. 15. Metabolic equilibrium actively maintained by several complex biological mechanisms that operate via (11)

Down

  1. 1. An organism of the kingdom Fungi lacking chlorophyll and feeding on organic matter (6)
  2. 2. The outer layer of the skin covering the exterior body surface of vertebrates (9)
  3. 5. A proposal intended to explain certain facts or observations (10)
  4. 6. Organic process consisting of the division of the cytoplasm of a cell following karyokinesis (11)
  5. 7. Pertaining to ___ or to life and living things (10)
  6. 8. Any animal lacking a backbone or notochord (12)
  7. 9. Tiny single-celled living things, some of which cause illness (8)