Q: What is an invention?
A: An invention is a new thing that someone has made.
Q: What is the computer an example of?
A: The computer is an example of an invention.
Q: What do we say when a new thing is first made?
A: When a new thing is first made, we say that it was "invented."
Q: What are cars and plastics examples of?
A: Cars and plastics are examples of inventions.
Q: Who makes inventions?
A: Inventions are made by inventors.
Q: What are many inventions?
A: Many inventions are patented.
Q: What are ideas also called?
A: Ideas are also called inventions.