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
Tectonic Model set, Demonstrate plate, plate boundary interactions and the geometry and relative motions of faulting of geologic layers using 3-D manipulative models, Versatile kit contains a Fault Model Set of 5 manipulatives and a Tectonics Sand Layer Model
Porosity and Permeability Lab Activity, Sources of Fresh Water Are Usually Associated with Visible Bodies of Water Such As Lakes, Rivers, Ponds, and Streams, the Majority of Fresh Water on Earth is Actually Unde
Diffusion and Osmosis kit, Includes: Agar, Bromothymol blue concentrate, Hydrochloric acid, Plastic cups, knives, stirrers, Cork borer Dialysis tubing, Microscope slides, Coverslips, Sucrose, Ovalbumin, Sodium chloride, Glucose QuickSolution, to study movement of water
Nexpensive, compact counter for measuring milliseconds. Each count is started and stopped by a signal at the input sockets. The device is automatically reset to zero each time it is restarted.
Cartesian Diver Only - 4 cm WL 1040, Ideal for Showing Archimedes Principle, with a hollow glass diver, shaped like a diver, with a 10in x 1 1/2in glass cylinder, a rubber sheet and rubber band, Fill the cylinder with water, drop in the diver it floats
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