Inventions

123456789
Across
  1. 1. Thomas Edison invented this
  2. 4. Surname of the person who invented the telephone
  3. 5. We can _______ on inventions to make them even better
  4. 7. The people who invented fireworks
  5. 8. The ______ brothers invented the first aeroplane
  6. 9. Machine that keeps things cool and allows food to last longer
Down
  1. 2. Method used so that blind people can read
  2. 3. The app that we are using to conduct classes now
  3. 5. A person who makes inventions
  4. 6. This is used to make sure no one can copy an inventor's idea
  5. 8. The first invention in the world