Solar Thermal Exploration Kit, Explore variables such as box color, light intensity, tube design, rate of water pumping, and amount of time it takes to heat water. Includes some basic information on solar water heating systems and how they work
Ti84 Plus CE Charging Station, Recharge up to 10 TI-84 Plus CE graphing calculators at a time, Convenient, Compact size keeps your graphing calculators organized as they recharge