What part of the eye controls the amount of light entering?

• Cornea

• Iris

• Lens

• Pupil

What do sound waves hit in the ear?

• Optic nerve

• Ear canal

• Eardrum

• Cochlea

What is the function of the lens in the eye?

• To focus light on the retina

• To transmit signals to the brain

• To detect movement

• To control the iris

Which part of the eye sends electrical signals to the brain?

• Cornea

• Retina

• Optic nerve

• Pupil

What do the tiny bones in the ear do?

• Control balance

• Focus light

• Transmit vibrations to the cochlea

• Detect sound waves

What is the role of the semi-circular canals?

• To detect light

• To help with balance

• To focus images

• To transmit sound

What part of the eye is responsible for color vision?

• Cornea

• Iris

• Retina

• Pupil

What do nerve receptors in the retina do?

• Control the iris

• Send signals to the brain

• Detect sound

• Focus light

What is the first step in the process of hearing?

• Sound waves hit the eardrum

• Eardrum vibrates

• Sound waves travel into the ear canal

• Cochlea turns vibrations into signals

Which sense is associated with the cochlea?

• Hearing

• Smell

• Touch

• Sight