Across
- 3. an important advance in knowledge
- 10. showy or fancy
- 12. a annoying person or thing
- 13. things that are produced and given off as part of a process
Down
- 1. able to work well
- 2. having success
- 4. available as a different choice
- 5. the was gases given off as part of a process
- 6. ability to move from place to place
- 7. having a sharp flavor or smell
- 8. having the potential to cause harm
- 9. made from a variety of things
- 11. the smallest units of chemical elements