You can make a clock that can work just on tap water with this Amazing Water Clock Science Kit by Elenco! You will never need batteries again! Also works on a variety of household materials such as: cola, fruit juice ketchup and even toothpaste! Try other materials and see how the clock never stops. This is the best timekeeper you will ever have.
This product may contain small parts which could be a choking hazard for children under 3 years.
Recommended Age: 8+ Years
Billable Weight: 1.00 lbs |
