Battery Science Book by Klutz&reg Make Widgets That Work and Gadgets That Go!

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Battery Science Book by Klutz® Make Widgets That Work and Gadgets That Go! Batteries ARE included in this really fun book that teaches kids everything about batteries. Has everything you need to build 8 move-by-themselves contraptions including "Bugzilla". This is a great fun educational way of showing kids how power works! Another great book for kids (over 8 years old) by Klutz®.

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