Elements and Compounds

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Across
  1. 3. Acid A strong acid used in car batteries and industrial processes.
  2. 6. Makes up 78% of Earth’s atmosphere; essential for plant growth.
  3. 7. The lightest and most abundant element in the universe.
  4. 9. A universal solvent made up of hydrogen and oxygen.
  5. 11. Found in all organic compounds; the basis of life.
  6. 12. A compound of nitrogen and hydrogen; used in fertilizers.
  7. 13. A simple hydrocarbon; the main component of natural gas.
  8. 14. An alkali metal that reacts explosively with water.
Down
  1. 1. Essential for respiration; makes up 21% of Earth’s atmosphere.
  2. 2. A simple sugar and an important energy source in living organisms.
  3. 4. A simple aromatic hydrocarbon with a six-membered ring.
  4. 5. A greenish-yellow gas used in disinfectants and bleaches.
  5. 8. Chloride Common table salt.
  6. 10. A lightweight metal used in aircraft and packaging.
  7. 11. Carbonate Found in chalk, limestone, and marble.