Spelling #23 Inventions

2. was a Scottish-born inventor, scientist, and engineer who is credited with inventing and patenting the first practical telephone.
5. A usually molded or dipped mass of wax or tallow containing a wick that may be burned (as to give light, heat, or scent or for celebration or motive purposes)
6. The dark figure cast upon a surface by a body intercepting the rays from a source of light
9. A system for transmitting voices over a distance using wire or radio, by converting acoustic vibrations to electrical signals.
10. A science that deals with the production, control, transmission, reception, and effects of sound
11. A person that produce for the first time through the use of the imagination or of ingenious thinking and experiment
13. A person learned in science and especially natural science.
14. An electric lamp, such as one in which a filament gives off light when heated to incandescence by an electric current
15. A small battery-operated portable electric light

1. A mechanically, electrically, or electronically operated device for performing a task
3. was an American inventor and businessman who has been described as America's greatest inventor.
4. container consisting of one or more cells, in which chemical energy is converted into electricity and used as a source of power.
6. Mechanical radiant energy that is transmitted by longitudinal pressure waves in a material medium and is the objective cause of hearing WOW! BOOM!
7. Having total or partial hearing loss
8. Metal in the form of a usually very flexible thread or slender rod
12. A periodic motion of the particles of an elastic body or medium in alternately opposite directions. Tuning fork
14. Any of various devices for producing light or sometimes heat