Read the passage and fill in the blanks with the given words.
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Our Sense Of Sight
We have five _____________. They are sight, touch, taste,
smell and hearing. Our senses are ____________ by tiny nerves
to the brain, sending ________________ to the brain. The brain
__________ the messages it receives and tells us what we see.
When we look at something, _________ enters our eyeballs
through the cornea. The light ______________ the nerves at the
back of our eyeballs. The nerves then ____________ messages
about the light to the brain. Once the brain ______________ the
message, we know ____________ we are seeing.
The coloured circle of our eye is the iris. In the __________
of the iris is the pupil which looks like a ____________ spot. The
pupil is ____________ a hole that lets light into our eye.
Muscles in the iris make the ___________ larger or smaller
to let in more or less light. When it is ______________, the pupil
gets smaller to let in less light. When the light is _____________
bright, we would shut our eyes completely using our eyelids.