Sight and Light What does light have to do with seeing? | p. 7 |
Working Together Why doesn't it go black when you blink? | p. 15 |
Optical Illusions Can your eyes play tricks on you? | p. 26 |
When Things Go Wrong What did Benjamin Franklin do to help people read? | p. 29 |
Life Without Sight How does vitamin A help you see? | p. 35 |
Stand Guard! Why must you never look directly at the sun? | p. 41 |
True Statistics | p. 43 |
Resources | p. 44 |
Important Words | p. 46 |
Index | p. 47 |
About the Author | p. 48 |
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