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DEPARTMENT H
Science,
Mechanics & Engineering
For
specific rules see 4-H Exhibit Building General Rules
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. [NOTE:
Cars will be on display at the Iowa State Fair one day only,
Thursday, August 7.]
Class 421B, Automotive — Educational display or other type of
exhibit showing an automotive idea such as safe operation,
maintenance plan, comparison shopping, principles of systems
operations such as electrical, braking, air bags, etc.
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; or
• an applied use of existing software (database, spreadsheet,
graphic design, etc.) including
printouts of the application showing work product; or
• an other idea that is an outgrowth of participation in a 4-H
computer project or program.
Class 611A, Electric/Electronics — Constructed or repaired
article or 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 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. NOTE: A
Conference Judging opportunity for exhibitors in class 441A will be
offered during exhibit check-in, August 7. Tractors will be
displayed outside and/or in a tent throughout the Iowa State Fair,
August 9-19.
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
welds, comparisons of welds, etc.
(NOTE: Large items may be displayed outside.)
Class 461A, Woodworking — New constructed and finished
article.
(NOTE: Large outdoor items may be displayed outside.)
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, Mechanics and Engineering Ideas —
Any other exhibit that is an outgrowth of a 4-H science, mechanics
and engineering project or educational experience that does not fit
any previous classes listed. Note: large items may be displayed
outside. |
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