Combine a garden/standard 10-gallon aquarium into an aquaponics ecosystem. The fish feed the plants/the plants clean the water. Includes custom grow-bed housing, pump/timer, clay pebbles, plumbing components, light-bar/detailed instructions
Fiber Optics Voice and Data Kit, fiber optics communications, Transmit your voice or a 1kHz signal through the fiber optic cable to a fiber optic receiver, components: including PC boards; microphone; speaker and fiber optic cable, with Transmitter and receiver
Comprehensive Basic Electricity Kit, Enables The Teaching Of Various Topics Related To Electricity, Flexible Alternative To A Circuit Board, Great For Grade 6, Included Trays Keep The Units Organized, Components Mounted On Tough, Yellow Plastic Bases
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