Energy and Technology Crossword

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Across
  1. 1. energy makes _______________ work.
  2. 4. technology has improved it with surgery and lasers.
  3. 5. the electronic ________________ sends information from telephones, TVs, and computers.
  4. 9. What the electronic superhighway sends
  5. 10. the land, sea and air of our world.
  6. 12. making water, air, or land unclean and unhealthy.
Down
  1. 2. What was the major source of energy in the nineteenth century?
  2. 3. what the photoelectric ell produces
  3. 6. the ___________________ cell can produce electricity from light.
  4. 7. without energy, this cannot be done.
  5. 8. They have designed new cars and invented medical machines.
  6. 11. The major source of energy in the twentieth century
  7. 13. tool that provides high-energy beams of light.