Incredible Inventions

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Across
  1. 3. in the future it could do your homework
  2. 8. used in cars and airplanes
  3. 9. please don't push the red ...!
  4. 10. has four side, but not the same
  5. 11. a new kind of telephone
  6. 13. has three sides
  7. 14. has four sides the same
Down
  1. 1. a tree is not metal, but...
  2. 2. it's not dark, it's ...
  3. 4. something round, cars have them
  4. 5. before light bulbs people used
  5. 6. it can fly
  6. 7. makes a beautiful fire in the night sky
  7. 9. needed in a remote control
  8. 12. has two wheels, you can ride it
  9. 13. a small computer