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alternative energy
It has the compass points North
All this data is shown on the same screen
Globe displays map of night sky
A popular science kit
Cosmic Rocket Digital Weather Station alternative energyMake your own rocket and learn a (safe) little bit about explosive chemistry This rocket uses the explosive power of carbon dioxide being released from a baking soda and vinegar reaction, propelling the rocket 50 feet or so higher than most houses. Parental supervision required and the parents will be just as thrilled.
US$ 196.00
US$ 175.00
US$ 120.00
