GUIDELINES FOR MODELS
Choose any scientific subject where a model and demonstration would give you information on how a natural object works. Please DO NOT choose a commercial plastic model or replica that doesn't have moving parts. Build YOUR OWN model out of inexpensive and easily available objects. For example, a working model of a human lung may be made from an empty soda bottle and a balloon. Marbles and a ramp made of wood can show one of Newton's laws of physics.
To begin, research your object and how it works using library resources. Decide how you could show this using a model. Make a plan on paper of your model to get the best working device you can.
In your display, describe how your model works and how the device you've built resembles the actual natural object or event. Be prepared to demonstrate the working model for the judge. A description of your library research, your materials used and a copy of the plans you drew to construct your model should also be included in your display. List any sources you found that helped you design your model. If your model is an invention or a new measurement tool, please explain on your display its function, why you invented this device, why it is necessary and what problems it will solve.
REMEMBER, models that are artistic displays of natural objects, like volcanoes and solar systems, and don't DO anything, are not acceptable entries in this Science Fair. Likewise, purchased plastic models made from kits are also not acceptable.