Edu-Toys Edu-Science Green Learning - Water Clock

Edu-Toys Edu-Science Green Learning - Water Clock

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Your Price: $24.95
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Part Number:EDU-3070
Make a clock that can work just on tap water! You will never need batteries again! Also works on a variety of household materials such as: cola, fruit juice and even ketchup! Try other materials and see how the clock never stops. This is the best timekeeper you will ever have.

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