Young readers will learn about the "cameras" in their heads. How do they work, how are they protected, and what are the processes that turn the visions that your eyes take in into pictures for your brain to decipher? Readers will learn about rods and cones, night vision, blindness, and much more in this interesting, fact-filled book.
ThriftBooks sells millions of used books at the lowest
everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We
deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15.
ThriftBooks.com. Read more. Spend less.