Inventions and discoveries

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Across
  1. 5. to (cause to) work, be in action or have an effect
  2. 6. to find information, a place, or an object, especially for the first time
  3. 8. to guess or calculate the cost, size, value, etc. of something
  4. 10. to design and/or create something that has never been made before
Down
  1. 1. made by people, often as a copy of something natural
  2. 2. a test done in order to learn something or to discover if something works or is true
  3. 3. the set of necessary tools, clothing, etc. for a particular purpose
  4. 4. a small device or machine with a particular purpose
  5. 7. a room or building with scientific equipment for doing scientific tests or for teaching science
  6. 9. a detailed study of a subject, especially in order to discover (new) information or reach a (new) understanding