Amazing Inventions

2. An electronic device that allows an electrical current to flow in one direction only.
5. The use of scientific knowledge or tools to make or do something.
6. An official recognition that an idea is new.
7. A process to make a product in which each worker does one or two jobs.
9. Identical pieces that are capable of being used in place of each other.
10. Fuel, such as gasoline or liquid hydrogen, plus oxygen.
11. A system of producing large amounts of goods at one time.

1. A thin metal plate used to help produce sound or make sounds louder.
3. An engine which burns, or combusts, fuel inside of it.
4. A substance found in sand used especially in computers and electronics.
6. Any one of the very small dots that together form the picture on a television screen, computer, monitor, etc.
8. A thin wire in a light bulb that glows when electricity passes through it.