Ingenious inventions

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Across
  1. 4. Say cheese!!!
  2. 7. We use it to heat up food
  3. 9. They cover cuts and sores
  4. 10. You use it to see the sky and stars
  5. 12. One type is an iPhone
  6. 16. It keeps the air cold in summer
  7. 17. It has two wheels and a seat, you can ride fast!
  8. 18. Objects in space that help us with communications and the weather
  9. 20. You use it to dry your hair
  10. 22. It stops us getting wet in the rain
  11. 23. We need it to surf the web
Down
  1. 1. We use it to see tiny microscopic organisms
  2. 2. We use them for electricity
  3. 3. You use it to wash your clothes
  4. 5. You need them to send letters
  5. 6. It checks our temperature
  6. 8. You watch it for fun
  7. 11. We can look up words we don't know
  8. 13. It holds paper together
  9. 14. You need one in a lamp
  10. 15. An injection to stop a disease from spreading
  11. 19. You use it to call someone
  12. 21. You listen to music on it