This amazing clock is powered simply by adding water to the reservoir. The water becomes an electrolyte allowing the metal probes inside the reservoir to act like a battery. An excellent demonstration of the conversion of chemical energy to electrical energy. Grade 3+, Ages 8+.
||water, clock, electrolyte, chemical energy, electrical energy, hours, minutes, date, LCD, time
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Double-sided study cards of fossils with diagram, characteristics and location.
Match It Math is a shouting, racing, adding, subtracting, and matching game that brings real numbers..
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Limited AvailabilityThis product is a compact, portable bodyweight training station. It is ideal for..