Keeping Fit

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 6. Physical activity that keeps you fit (8)
  2. 7. An essential structural component of living cells and source of energy for animals (plural) (13)
  3. 8. A fertilizer that is derived from animal or vegetable matter (7)
  4. 10. Nutrient in meat and beans that builds muscle (7)
  5. 11. Depending on free oxygen or air (7)
  6. 13. The act of physically reaching or thrusting out (7)
  7. 14. Solid homogeneous inorganic substances occurring in nature having a definite chemical composition (plural) (8)
  8. 15. A physician who specializes in ___ (7)

Down

  1. 1. A polyhedron having a polygonal base and triangular sides with a common vertex (7)
  2. 2. Clear liquid we drink that falls as rain (5)
  3. 3. Tiny single-celled living things, some of which cause illness (8)
  4. 4. A chemical compound that is added to protect against decay or decomposition (plural) (13)
  5. 5. A component of a mixture or compound (10)
  6. 9. Greasy substance in food and body tissue (3)
  7. 12. A unit of heat equal to the amount of heat required to raise the temperature of one kilogram (7)
  8. 15. A silvery soft waxy metallic element of the alkali metal group (6)