Across
- 3. the characteristic of being young
- 5. an indication of an illness
- 7. a deep, narrow valley
- 8. a large room used for indoor sports
- 9. a type of quartz that is almost transparent
- 12. plural of system; a group of parts that work together to form a task
Down
- 1. putting into rhyme
- 2. something not easily or immediately understood
- 4. to make pure
- 6. a science that deals with matter and energy
- 10. one who types
- 11. to process so as to regain usefulness