Lesson 4 - Your Digestive System

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 4. Sweet food that grows on plants (5)
  2. 8. The externally visible part of the oral cavity on the face and the system of organs surrounding (5)
  3. 9. To make something different (6)
  4. 10. The longest part of the alimentary canal (14)
  5. 12. To lessen in force or effect (6)
  6. 14. Any of various organs that synthesize substances needed by the body and release it through ducts (plural) (6)
  7. 15. Clear liquid we drink that falls as rain (5)

Down

  1. 1. The process of decomposing organic matter by bacteria or by chemical action or heat (9)
  2. 2. What we eat to get energy and grow (4)
  3. 3. Physical activity that keeps you fit (8)
  4. 5. An enlarged and muscular saclike organ of the alimentary canal (7)
  5. 6. Edible seeds or roots or stems or leaves or bulbs or tubers or nonsweet fruits of any of numerous (9)
  6. 7. The liquid part that can be extracted from plant or animal tissue by squeezing or cooking (plural) (6)
  7. 10. A small amount of liquid food (7)
  8. 11. A clear liquid secreted into the mouth by the ___ glands and mucous glands of the mouth (6)
  9. 13. The kind and number and arrangement of ___ in a person or animal (5)