Across
- 4. any of a group of hormones secreted within the brain
- 7. art of photography
- 8. an account of a person's life written by that person
- 9. the process by which green plants and some other organisms use sunlight to synthesize nutrients
- 10. an American form of tuba
Down
- 1. the sequence of steps and movements in dance
- 2. an instrument that measures and records details of earthquakes
- 3. pleasing or sweet sound
- 5. an instrument for converting sound waves
- 6. a harsh discordant mixture of sounds.