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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
The largest/longest windsock - 6 foot long
3 sachets of Dawn detergent plus Guar Gum powder (makes bubbles stick together longer) plus recipe/instructions
Kit contains the electrodes needed and instructions - you supply the potato
the TwinPlus also displays in and out humidity readings
and no more chart/ink management
Solar Science Kit Digital Weather Station The largest/longest windsock - 6Make your own solar power generator and use it to power a small oven or water heater. Warning: it gets real hot, don't stick your hand in to check it. All necessary materials included (except the egg you cook) no batteries needed. For 11+. Part of the Green Science series, 21cm H by 17cm W by 6 deep.
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US$ 175.82
