Across
- 1. necessary for the success or continued existence of something; extremely important
- 7. a person who studies physics or whose job is connected with physics
- 8. annoyed, especially because you can do nothing to solve a problem
- 9. in or coming from a place outside the planet Earth
- 11. in a fast or sudden way
- 12. extremely large
Down
- 2. (of a person) very intelligent and skilful or (of a thing) skilfully made or planned and involving new ideas and methods
- 3. necessary or needed
- 4. very surprised
- 5. extremely happy
- 6. confused and uncertain
- 10. annoyed or angry