Across
- 2. the smallest parts of substances that can exist by themselves, made of one or more atoms
- 5. natural compounds that undergo chemical changes when they absorb light
- 6. the distances between the consecutive high or low points of a wave
- 7. weaknesses, imperfections, or failures
- 9. of or relating to genetic traits passed from parents to offspring
- 10. tissue at the back of the eye that receives images and transmits them to the brain
- 11. cells in the eye's retina that are color sensitive and work best in bright light
Down
- 1. an inherited physical condition that is caused by a problem in one or more genes
- 3. serving to complete, balance, or improve something else
- 4. family members and relations from past times
- 5. a clear object that bends light so that it separates into a rainbow of colors
- 8. cells in the eye's retina that are light sensitive and work best in dim light