Vision, Lab 7 and hearing
Answers are for parents and teachers.
1
Explain accommodation in 2 sentences.
Lens curvature changes: convex for near, flat for far; this focuses the image on the retina.
2
Compare myopia and hyperopia.
Myopia – image in front of the retina; hyperopia – behind it.
3
Write 5 rules of eye hygiene.
Read in light, 30–40 cm, not in transport, limit screens, doctor checks.
4
Write the parts of the ear in order.
Auricle, ear canal, eardrum, ossicles, cochlea, auditory nerve, temporal cortex.
5
Write 4 rules to protect hearing.
Lower headphone volume, rest from noise, no sticks, doctor for pain.