- this amazing kit from Kraul brings together science and fun.
- this set has all that’s needed to build a boat which is powered by heat
- heat of a tea candle is sufficient to power the candle boat ; The candle heats up a thermo element on one side and water provides cooling on the other ; From the difference in temperature, voltage is generated to power the boat propellor
- Kit 14 years +
- Made in Germany with high quality material