Energy and Technology Crossword

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