ears? 6. Comment on doing each of these things:--firing a bean shooter
at anyone; throwing gravel or sand; firing off a cap or torpedo close
to some one's head; boxing a person on the ear; running a nail cleaner
or pencil point into your ear; putting on the baby's cap so that the
ears are folded forward; asking your teacher to repeat her question.
7. Have you tried to train your ears? How?--and why? 8. Find out about
some business, or occupation, in which it is necessary to have very
keen hearing, and write a little story about it.

III. SEEING AND READING. 1. Are you seated now in the best way for
reading or not? Why? 2. Why is it well to look up often, as you read?
3. How far from your eyes ought you to be able to hold this book to
read it easily? If you cannot, what should you do? 4. Draw a picture
of someone's eye, as you see it, naming the parts. 5. Draw a picture
of your eye as it would look if you could see the eyeball from the
_left_ side, and name the parts. 6. What takes the sight message to
the brain? 7. How does the nerve of the eye (the _optic nerve_) get
its messages? What, then, is _light_? If the light waves enter the
ear, can they make you hear? Why not? 8. When a baby is born, what
care should be taken of its eyes immediately, and why? 9. Have you
ever played any games in which the sharpest eyes won? What were they?
10. Write a little story about the picture on p. 59.

IV. A DRINK OF WATER. 1. Why do we want to drink water? How would you
know that your body must have a great deal of liquid in it? 2. Do you
know where the water you drink at school comes from? If you don't, try
to find out; and find out also just how it is brought to the school
and why it flows up to the faucets. 3. If you get drinking water from
a well, either at home or at school, tell where this well is--how near
the house or the out-buildings. Do you think that any waste from these