Across
- 2. a test to find out or prove.
- 5. careful study of a subject or problem.
- 6. to show to be true by backing up with facts.
- 8. an original device, system, or process.
- 10. strength
Down
- 1. a small, useful machine or device.
- 3. to get better
- 4. well known from being seen often.
- 7. powered by electricity, a form of energy caused by the motion of electrons and protons.
- 9. things people use to help them do a job.