For Thadeus...

Product Detail:
Winner of a Parents' Choice Award, Dr. Toy's Product of Excellence Award and an iParenting Media Best Product.
Get hands-on experience of the science of hydrodynamics by building your own working plant.

Build a 1/87-scale realistic hydrodynamic plant
Uses working tanks, pipes, valves and electric pump
Design the plant, build it and add water
Use valves to adjust the flow
Build several different structures – an ice cream factory, a water treatment plant, an oil refinery, a distillation plant, and more
Ideal for middle and high school level science fair projects
The best way to learn how something works is to build it yourself. This deluxe building set lets you build one of the most fascinating mechanical feats – the working manufacturing plant.
Safety warning: This product contains small parts that may present a choking hazard for young children.

The Discovery Channel so has your back. 80 bucks and a guaranteed "A" in for your entry in the Science Fair.

http://shopping.discovery.com/product-67147.html?jzid=40588073-2-0

-DISCO