KidWind Balsa Blade Sheets, very lightweight and stiff, and it is perfect for making experimental wind turbine blades, for College, High School, and Middle School Science, Pk100
Spectrum Tube, Material: Bromine, 25cm long with the capillary portion about 10cm long, An electrode, sealed in each end and attached to a metal end cap with a loop for convenient hookup to wire connections, Each spectrum tube includes an activity guide.
HOOKUPZ* 2.0, Universal Smart Phone Optics Digiscoping Adapter, Optics with an eyepiece of 25-58mm, For Binoculars, Spotting Scopes, Monoculars, Telescopes, Microscopes, Incompatible for riflescopes and tablets, Fits ipods, iphones, Galaxy, Motorola and HTC phones
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