Amazing Inventions Vocabulary Crossword

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Across
  1. 4. Identical machine pieces designed to be used in place of each other.
  2. 5. A process to make a product in which each worker does one or two jobs.
  3. 6. An official legal document giving an inventor the exclusive right to make, use, or sell their invention.
Down
  1. 1. Fuel, such as gasoline or liquid hydrogen, plus oxygen.
  2. 2. A system of producing large amounts of goods quickly
  3. 3. A substance found in sand used especially in computers and electronics.
  4. 7. The use of scientific knowledge and tools to invent things or solve problems.