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SCIENCE,
MECHANICAL & ENGINEERING - Division 151
See General Rules for the 4-H Exhibit Building (copyright, exhibit sizes,
etc.).
Class 401A: Aerospace Flyable model built from a kit or
original design.
Class 401B: Aerospace Educational display or other type of
exhibit showing an aerospace idea such as forces involved in flying,
model rocket photography, safety in flying model rockets or airplanes,
test for rocket stability, etc.; may include scale models or kits to
illustrate a concept.
Class 421A: Automotive Repaired or restored vehicle.
Class 421B: Automotive Educational display or other type of
exhibit showing an automotive idea such as safe operation, maintenance
plan, comparison shopping, principles of system operations such as
electrical, braking, air bags, etc.
Class 611A: Electric/Electronics Constructed or repaired
article or an educational display or other type of exhibit showing an
electric or electronic idea such as safety, construction techniques,
lighting effects, electrical energy sources, etc.
Class 451A: Small Engine Repaired or restored operating engine
or an educational display or other type of exhibit showing
a small engine idea such as maintenance, function of parts, comparisons,
etc.
Class 441A: Tractor Repaired or restored tractor.
Class 441B: Tractor Educational display or other type of
exhibit related to tractor showing an idea such as safe operation,
maintenance plan, engine components, operation costs, principles of
engine operation, safety hazards, etc.
Class 411A: Welding -- Constructed article or educational display
related to welding showing an idea such as safety, types of weld,
comparisons of welds, etc.
Class 461A: Woodworking New constructed and finished article.
Class 461B: Woodworking Educational display or other type of
exhibit showing a woodworking idea such as type of woods, wood finishes,
safety precautions, tools and proper use, wood fasteners, woodworking
skills and techniques, etc.
Class 893A: Science and Technology Educational display or other
type of exhibit showing how science and math help us understand the
world. May include constructed article, posters, portfolios, notebooks,
etc., to show and explain what was learned.
Class 601A: Other Science, Mechanical and Engineering Ideas --
Any other exhibit which is an outgrowth of a 4-H mechanical and
engineering project or educational experience that does not fit any
previous classes listed.
Class 901A: Computer Educational display or other type of
exhibit showing:
An original computer program written by the exhibitor in a common
computer language, including documentation An applied use of existing
software (database, spread sheet, graphic design, etc.) including
printout of the application showing work product an other idea that is
an outgrowth of participation in a 4-H computer project or program |