Inventions

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Across
  1. 1. A simple machine with spiral threads
  2. 4. a cap that you screw on a bottle
  3. 6. A simple machine made of a wheel connected to a rod
  4. 8. A piece of wood to pin papers on
  5. 9. A tool used to cut wood
  6. 10. A sloping surface used to move things more easily
  7. 11. A playground toy that goes up and down
  8. 12. Something that gives light
Down
  1. 2. use this when you can't walk
  2. 3. A tool used to hit nails
  3. 5. a sloped area for wheelchairs to go or down on
  4. 6. A simple machine used to split things apart
  5. 7. You turn this to open a door
  6. 11. A playground toy to to move smoothly along a surface