Across
- 2. a tool or machine that has a certain purpose
- 4. useful, helpful, or important
- 7. something extremely clever or skillful
- 9. the act of writing down words that have been spoken
- 10. able to do a lot with time and resources
Down
- 1. a way to find unseen objects by using radio signals
- 3. something created by a person that did not exist before
- 5. an important discovery after many tries
- 6. first of its kind
- 8. the use of science to invent useful things or to solve problems