Across
- 3. A person who creates a new device, machine, or process
- 6. A system that delivers messages by sounds and codes
- 8. Founded July 9, 1877 by Alexander Graham Bell, Thomas Watson, and two other business men that made telephones for people to buy
- 10. The part of a telephone that converts the radio signals into sounds
- 12. A Scottish-born inventor and teacher whose most famous invention is the telephone
Down
- 1. The part of the telephone that sends sounds over radio waves/signals
- 2. An American inventor and Alexander Graham Bell’s assistant, especially during the creation of the telephone
- 4. A system of symbols that represents speech sounds and how to make them to help people who are deaf communicate created by Alexander Graham Bell
- 5. A model built to test and see if a design/invention works
- 6. A communication device that allows two or more people to speak from a distance
- 7. Proof that a certain inventor came up with the idea of an invention first and that the idea belongs to him or her
- 9. An American engineer who created a telephone prototype and was Alexander Graham Bell’s rival
- 11. Lacking the ability to hear