P.s. Ch 1 Section 4 Origin of Life

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 1. Bottle that has a narrow neck (5)
  2. 3. Tiniest unit of living things (4)
  3. 4. A mass of ___ and snow that permanently covers a large area of land (plural) (7)
  4. 7. Huge body of salt water (plural) (6)
  5. 9. An oxide containing two atoms of oxygen in the molecule (7)
  6. 10. Layer of air around the Earth (10)
  7. 12. Clear liquid we drink that falls as rain (5)
  8. 13. An essential structural component of living cells and source of energy for animals (plural) (13)
  9. 14. A living thing that has the ability to act or function independently (plural) (9)
  10. 15. Any division of quantity accepted as a standard of measurement or exchange (plural) (5)

Down

  1. 2. A very old person (7)
  2. 5. Nutrient in meat and beans that builds muscle (plural) (8)
  3. 6. Igneous rock produced by eruption and solidified on or near the earth's surface (8)
  4. 8. The act of conducting a controlled test or investigation (plural) (11)
  5. 11. Abrupt electric discharge from cloud to cloud or from cloud to earth accompanied by the emission (9)
  6. 14. The place where something begins, where it springs into being (6)