In 3 to 5 sentences, explain how ears detect sound and how eyes detect light.
Ears detect sound through a complex process involving the outer ear funneling sound waves into the ear canal, which then vibrates the eardrum. The vibrations are then transmitted to the ossicles (tiny bones) in the middle ear, which amplify the sound and send it to the cochlea in the inner ear. In the cochlea, hair cells convert the vibrations into electrical signals that are sent to the brain for interpretation.
Eyes detect light through the process of vision. Light enters the eye through the cornea, a transparent layer that covers the front of the eye, and then passes through the pupil (the opening in the center of the colored iris). The lens in the eye focuses the light onto the retina, which contains light-sensitive cells called photoreceptors. The photoreceptors, specifically rods and cones, convert the light into electrical signals that are transmitted to the brain via the optic nerve for processing and interpretation.