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I Wonder Why Zippers Have Teeth

and other questions about inventions

#EM100
$6.95
For delivery in time for Christmas (in-stock items), order through 12/08 and choose Regular Shipping.

"Why do people invent things?" "Which toy is 6,000 years old?" "When could you watch pink TV?"

Common questions and their amazing answers are likely to stimulate further discovery! With a lively question and answer approach, the I Wonder Why... books are like mini-encyclopedias full of incredible information and appealing artwork. Offer them as soon as children begin to question.

Fact-based graphic format will appeal to children. The table of contents lists questions; the index points to facts about specific subjects. Paperback, 32 pages.

More titles in the I Wonder Why series here.
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