strange inventions

12345678910111213
Across
  1. 3. Used to do calculations
  2. 5. A hat that let's you listen to the radio
  3. 9. A floating Jacuzzi
  4. 10. Cat ears that tell people how you feel
  5. 12. Used to write
  6. 13. Attaches to a bicycle and lets you ride waves
Down
  1. 1. A pillow shaped like a weird animal
  2. 2. The greatest invention of all time
  3. 4. Baby clothes that let your baby clean
  4. 6. Used to hold ink
  5. 7. Zaps the person awake when they fall asleep
  6. 8. Used by teachers to start and end the period
  7. 11. Used by students to practice writing