Hydropower has been used for hundreds of years in watermills and is now commonly used to generate electricity in applications such as hydroelectric dams and tidal power plants. Explore the power of water by building models and conducting experiments with them. Learn about how different devices are used to extract useful energy from moving waterfrom a waterwheel in a small stream to a giant turbine in a tidal power station.
Build a waterwheel, a sawmill, and a hammer mill to harness the energy of moving water to do different types of physical work. Investigate the intriguing properties of water by performing experiments involving surface tension, adhesion, and cohesion. Learn about water pressure by building a water tower, communicating vessels, and a water fountain. Construct a hydroelectric power station to generate electricity and light an LED. Learn about where the energy in ocean waves, tides, and rivers comes from, and discover how we can generate electricity from them.
WARNING!This set contains chemicals and parts that may be harmful if misused. Read cautions on individual containers and in manual carefully. Not to be used by children except under adult supervision.
This offer expires 7/31/14 at 11:59 p.m. PT and can be modified or canceled at any time. Offer excludes globes, map gifts, puzzle gifts, digital products, framed maps, mounted maps, magazines, Genographic Kits, Road Less Traveled merchandise, CafePress merchandise, 10th Edition of the National Geographic Atlas of the World, Around the World in 125 Years - 3-Volume Collector's Edition Book from TASCHEN, Platinum Atlases, and Weekend Photo Workshops. Discount will be applied at checkout. Cannot be combined with other offers; not valid on previous orders. Applicable for online orders only. Prices not valid in the National Geographic UK Online Store or Road Less Traveled.