Understanding the Human Senses

Maria walks outside and the bright sunlight enters her eyes. What part of her eye lets the light in?

• eyelid

• pupil

• iris

• retina

Liza was reading her favorite storybook when her teacher asked, “Which part of your eye helps send the image of the words to your brain so you can understand what you’re reading?”

• retina

• cornea

• optic nerve

• iris

During science class, Marco noticed that his eyes adjust when he moves from a bright room to a dark one. His teacher explained that a part of the eye controls how much light enters. What part is she talking about?

• retina

• lens

• iris

• eyelid

While listening to music, Miguel noticed the sound traveling into his ear. Which part collects the sound first?

• ear canal

• eardrum

• pinna

• cochlea

What is the function of the cochlea in the ear?

• balances the body

• collects sound

• sends sound to the brain

• produces earwax

After tasting a sour candy, Liza made a face. Which part of her body helped her detect the sour flavor?

• nose

• tongue

• skin

• ear

What is the main function of the taste buds on the tongue?

• Help chew food

• Detect flavors

• Produce saliva

• Swallow food

Carlo smelled a flower and said it was sweet. Which part of his body helped him detect the scent?

• tongue

• nose

• skin

• ear

What is the function of the tiny hairs inside the nose?

• Help taste food

• Protect the eyes

• Filter dust and germs

• Make sound

Ana touched a hot cup and quickly pulled her hand away. Which sense organ helped her feel the heat?

• skin

• tongue

• nose

• ear