Inventions

123456789
Across
  1. 2. person who studies a subject deeply
  2. 4. A piece of electronic or mechanical equipment
  3. 5. object used to harm or defend
  4. 9. Finding something previously unknown
Down
  1. 1. - Something valuable that helps achieve progress or success
  2. 3. The final result of an action or event
  3. 6. get a permission to enter or obtain informationInstallTo set up software or equipment
  4. 7. The use of scientific knowledge for practical purposes
  5. 8. drawing that explains how something works