Energy and Technology Crossword

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