Science, Technology, Engineering & Math

ON THIS PAGE: 
Rockets | Computers | Robotics | Geospatial | Energy | Electricity | Woodworking | Welding | Power Mechanics | Model Vehicles | Small Engines

Superintendents: Ron Suing and Marlo Yakel

ONLY 1 ENTRY PER CLASS NUMBER PER 4-H MEMBER.

All articles exhibited need to match the plans (if needed) that are provided. If plans are modified, the changes need to be noted on the plans. Think about it like this: one department in a company develops a product and draws a set of plans. A second department manufactures the product and a third department makes the boxes that the product will be sold in. Still a fourth department will do the advertising for the product. As you can imagine the company has big problems and maybe a lawsuit if everyone doesn’t follow the same plan. You are welcome to be the designer, but the plans and the article must match or points will be deducted at judging. All plans used for making the article must be attached and protected by a clear plastic cover.

  • Premiums (except where designated otherwise): Purple $3; Blue $2; Red $1; White $0
  • A Special Award will be given to the Top Engineering Exhibit

STEM ROCKETS

Any factory-assembled rockets (i.e. plastic fins, preassembled fins) WILL NOT BE ACCEPTED AND DISQUALIFIED.

Rockets must be supported SUBSTANTIALLY in order to protect the rockets from breakage. Rockets are to be mounted on a base that has dimensions equal to or less than 12 inches x 12 inches and the base should be 3/4-inch thick. No metal bases. If the rocket fins extend beyond the edges of the required base (12 inches x 12 inches), then construct a base that is large enough to protect the fins. The base size is dictated by the size of the rocket fins. The rockets should be mounted vertically. Please do not attach sideboards or backdrops to displays. In addition, a used engine or length of dowel pin is to be glued and/or screwed into the board and extended up into the rocket’s engine mount to give added stability. Rockets must be equipped as prepared for launching, with wadding and parachute in place or other recovery system.

A report, protected in clear plastic cover, must include: 1) rocket specifications (type of rocket, dimensions, construction materials, etc.), include original or photo of manufacturer’s packaging stating rocket skill level, 2) a flight record for each launching (weather, distance, flight height), 3) number of launchings, 4) flight pictures, 5) safety (How did you choose your launch site? Document safe launch, preparations and precautions), 6) objectives learned and 7) conclusions. The flight record should describe the engine used, what rocket did in flight and recovery success. Points will not be deducted for launching, flight or recovery failures described. This includes any damage that may be shown on the rocket. 3 LAUNCHES ARE REQUIRED to earn the maximum launch points given on the score sheet. Only actual launches count, misfires will not count towards 1 of the required 3 launches. All reports should be clearly written or typed and enclosed in a waterproof (plastic) binding. THE REPORTS SHOULD BE ATTACHED SECURELY TO THE DISPLAY.

ROCKETS ENTERED WITH LIVE ENGINES, WRONG BASE SIZE, PLASTIC FINS OR SIDEBOARDS WILL BE DISQUALIFIED.

Judging is based upon display appearance, rocket appearance, workmanship, design or capabilities for flight, number of times launched and report. The skill level of a project is not determined by number of years in project. Skill level is determined by the level listed on the manufacturer’s packaging.

4-H Rocket project levels are not intended to correspond to National Association of Rocketry model rocket difficulty ratings or levels.

High power rockets (HPR) are similar to model rocketry with differences which include propulsion power and increased weight. They use motors in ranges over “G” power and/or weigh more than laws and regulations allow for unrestricted model rockets. These rockets are NOT appropriate for 4-H projects and will be disqualified.

Posters can be any size up to 22 inches x 28 inches when ready for display. Tri-fold poster boards exceed the 22-inch x 28-inch size and cannot be used.

  • Premiums (except where designated otherwise): Purple $3; Blue $2; Red $1; White $0
  • Special Award to Top Aerospace/Rockets/Drones Exhibit

Aerospace/Rockets

H850001   Rocket — any skill level rocket with wooden fins and cardboard body tubes painted by hand or air brush.

H850002   Aerospace Display — poster or display board that displays or exemplifies 1 of the principles learned in the “Aerospace Adventures Level 2: Lift Off” 4-H project book. Examples: display of rocket parts and purpose, explaining the parts of a NASA rocket or shuttle, interview of someone in the aerospace field or kite terminology. Include notebook containing terminology (definition) and what was learned. Display can be any size up to 22 inches x 28 inches.

H850003   Rocket — any skill level rocket with wooden fins and cardboard body tubes painted using commercial application (example: commercial spray paint).

Self-Designed Rocket

For self-designed rockets only, please include digital recorded copy of 1 flight. In the documetation, please include a description of stability testing before the rocket was flown.

H850004   Rocket — any self-designed rocket with wooden fins and cardboard body tubes.

Drones

H850005   Drone Poster — exhibit must be designed to educate yourself and others on 1 or more of the following topics: drone technologies, use of drones, the different types of drones, types of training needed to operate drones and the laws and regulations users must follow. Posters can be any size up to 22 inches x 28 inches.

H850006   Drone Video — exhibit must demonstrate how the drone interacts with the outside world. Examples include: field scouting, surveying damage from natural disasters, drones used in commercial applications and settings, drones used for structural engineering. Video should not exceed 5 minutes. Videos can be saved on a USB flash drive OR uploaded to a video streaming application with a printed QR code for viewing (4-H members are encouraged to test their QR code on several devices to check for appropriate permissions for public viewing).


STEM COMPUTERS

Computer – Unit 1

H860901   You Be the Teacher (county only) — educational notebook, display or scrapbook that relates to project. Include 8.5-inch x 11-inch page describing exhibit and summary of learning.

H860902   Printed Publication (county only) — exhibit any publication 4-H member has created. Examples: greeting card, flyer, newsletter, invitation, etc. Use appropriate display method (notebook, sheet protector, poster or other). On a separate sheet of paper, list: 1) which software program was used, 2) what was the most difficult part of the process and 3) what you learned.

H860911   Poster (county only) — educational poster illustrating/identifying any of the following: 1) computer components and their uses, 2) similarities and differences in office software applications, 3) internet safety and 4) decimal to binary and decimal to hexadecimal.

Computer – Unit 2

H860001   Computer Application Notebook — 4-H member should use computer application to create a graphic notebook utilizing computer technology. 4-H member may create any of the following: greeting card (5 different cards such as a birthday, wedding, anniversary, sympathy, get well or other); a business card (3 cards for 3 different individuals and businesses); menu (minimum of 2 pages including short description of foods and pricing); book layout (1 book); promotional flyer (3 flyers promoting 3 different events); newsletter (minimum 2 pages) or other (examples: precision farming or family business logo, etc.) This exhibit consists of a notebook (8.5 inches x 11 inches) which should include: 1) a detailed report describing: a) the task to be completed, b) the computer application software required to complete the task, c) specific features of the computer application software necessary for completing the task; and 2) print out of your project. Project may be in color or black and white.

H860002   Produce a Computer Slideshow Presentation — using presentation software, a 4-H member designs a multimedia computer presentation on 1 topic related to youth. Slideshow should include a minimum of 10 slides and no more than 25. Incorporate appropriate slide layouts, graphics, animations and audio (music or voice and transition sounds do not count). Each slide should include notes for a presentation. A notebook with a printout of all the slides should be submitted. The presentation file needs to be exported/created as a video in order for the judge to easily view at fair and prevent disqualifications for not being able to be viewed. Videos can be saved on a USB flash drive OR uploaded to a video streaming application with a printed QR code for viewing (4-H members are encouraged to test their QR code on several devices to check for appropriate permissions).

H860903   Printed Publication (county only) — exhibit any 2 publications 4-H member has created. Examples: greeting card, flyer, newsletter, invitation, etc. Use appropriate display method (notebook, sheet protector, poster or other). On a separate sheet of paper, 1) which software program was used, 2) what was the most difficult part of the process and 3) what you learned.

H860912   Poster (county only) — educational poster illustrating/identifying any of the following: 1) internal computer components, 2) operating systems and their processes, 3) protocols and program languages that support networking.

Computer – Unit 3

  • Premiums: Purple $4; Blue $3; Red $2; White $0

H860003   Produce an Audio/Video Computer Presentation — using presentation software, a 4-H member designs a multimedia computer presentation on 1 topic related to youth. The presentation should be 2–5 minutes in length and use appropriate graphics, sound and either a video clip, animation or voice over and/or original video clip. A notebook with a printout of all the slides should be submitted. The presentation file needs to be exported/created as a video in order for the judge to easily view at fair and prevent disqualifications for not being able to be viewed. Videos can be saved on a USB flash drive OR uploaded to a cloud streaming service with a printed QR code for viewing (4-H members should test their QR code on several devices to check for appropriate permissions for public viewing).

H860004   How-to STEM (Science, Technology, Engineering & Math) Presentation — 4-H members design a fully automated 2–5 minute 4-H “how-to” video. Submissions should incorporate a picture or video of the 4-H member, as well as their name (first name only), age (by Jan. 1 of the current year), years in 4-H and their personal interests or hobbies. Videos can be saved on a USB flash drive OR uploaded to a video streaming application with a printed QR code for viewing (4-H members are encouraged to test their QR code on several devices to check for appropriate permissions for public viewing).

H860005   Virtual Platform Presentation — 4-H members design a fully automated educational presentation using any multimedia platform such as TikTok, YouTube, Canva, etc. Submissions may include a notebook, poster, etc. explaining the process, experience and/or presentation. All submissions should include a link to the virtual presentation or display (video, notebook, poster, etc.). Videos can be saved on a USB flash drive OR uploaded to a video streaming application with a printed QR code for viewing (4-H members should test their QR code on several devices to check for appropriate permissions for public viewing).

H860006   Create a Website, Blog or App — design a simple website, blog or app for providing information about a topic related to youth. Include an explanation of why the entry was created. Any current website, blog or app development platform is accepted such as Google Sites, iBuildApp, Wix, etc. If the website, blog or app isn’t live, include all files on a flash drive in a plastic case. 4-H members MUST provide a hard copy QR code for viewing (4-H members are encouraged to test their codes or links on several devices to check for appropriate permissions for public viewing).

H860007   3D Printing — 3D printing uses plastic or other materials to build a 3-dimensional object from a digital design (including 3D Pen Creation). 4-H members may use original designs or someone else’s they have re-designed in a unique way. Exhibits will be judged based on the motivation and/or problem identified. For example, 3D objects printed as part of the design process for robot or other engineering project or cookie cutter. Must include design notebook that addresses the following questions: 1) What was the motivation for your design or the problem you were solving with your design, i.e. is your item a functional or decorative piece? 2) Please include a picture of original design, citation of designer/website OR if design is completely original (you created it using CAD software), then state that it’s original. If item was not completely original, indicate what you did to the original design to modify it to better meet the design problem stated in #1 above. If its design was modified multiple times, please indicate what change was made with each modification and what prompted the need for the change. i.e. I printed it and the design was too fragile, so I resliced the print to make thicker external walls or to have a denser infill. 3) Define your process for designing/ printing. What software and/or hardware was used (indicate type of 3D printer or if item was created with 3D pen)? 4) What materials were selected for your project? 5) If your final design has any moving parts, define how you determined appropriate allowance in your design. 6) Identify any changes that you would make to improve your design.

H860008   Maker Space/Digital Fabrication — this project is a computer generated project created using a laser cutter, vinyl cutter, heat press or CNC router. Vector or 3D based software such as CorelDRAW or Fusion 360 would be an example of an appropriate software used to create your finished project. Project should include a notebook with the following: 1) what motivated you to create this project, 2) software and equipment used, 3) directions on how to create the project, 4) prototype of plans, 5) cost of creating project, 6) iterations or modifications made to original plans, 7) changes you would make if you remade the project. Team Entry Option: team materials must clearly be the work of a team instead of an individual and must have at least 50% of all team members enrolled in 4-H. Additionally, all enrolled 4-H members on the team should complete and attach an entry tag to the materials. A supplemental page documenting the individual contributions to the project should be included. The entry will be judged as a team, with all team members receiving the same ribbon placing. 

H860907   Printed Publication (county only) — exhibit any 3 publications 4-H member has created. Examples: greeting card, flyer, newsletter, invitation, etc. Use appropriate display method (notebook, sheet protector, poster or other). On a separate sheet of paper, list: 1) which software program was used, 2) what was the most difficult part of the process and 3) what you learned.


STEM ROBOTICS

H861001   Robotics Poster — create a poster (22 inches x 28 inches) communicating a robotics theme such as “Robot or Not,” “Pseudocode,” “Real World Robots,” “Careers in Robots,” “Autonomous Robotics,” “Precision Agriculture” or a robotic topic of interest to the 4-H member.

H861002   Robotics Notebook — explore a robotics topic in-depth and present your findings in a notebook. Documentation should include any designs, research, notes, pseudocode, data tables or other evidence of the 4-H members learning experience. The notebook should contain at least 3 pages. Topics could include a programming challenge, programming skills, calibration, sensor exploration or any of the topics suggested in Class H861001.

F500037   *Robotics Video — this class should be displayed in a notebook. The notebook should include a video clip on a flash drive that demonstrates the robot performing the programmed function. Include your pseudocode and screenshots of the actual code with a written description of the icon/command functions. Team Entry Option (2–4 4-H Members): team materials must clearly be the work of a team instead of an individual and must have at least 50% of all team members enrolled in 4-H. Additionally, all enrolled 4-H members on the team should complete and attach an entry tag to the materials. A supplemental page documenting the individual contributions to the project should be included. The entry will be judged as a team, with all team members receiving the same ribbon placing.

H861004   Robotics Careers Interview — interview someone who is working in the field of robotics and research the career in robotics. Interviews can either be written or in a multimedia format such as a short video uploaded to a cloud-sharing service. Include a hardcopy QR code with your project to allow for judging access (4-H members are encouraged to test their codes or links on several devices to check for appropriate permissions for public viewing). Written interviews should be in a notebook. Written reports should be 3–5 pages, double spaced, 12-point font and 1-inch margins. Multimedia reports should be 3–5 minutes in length.

H861005   Robotics Sensor Notebook — write pseudocode which includes at least 3 sensor activities. Include the code written and explain the code function. Codes can be submitted as a multimedia format. Multimedia presentations should be 3–5 minutes in length. Videos can be uploaded to a video streaming application and 4-H members MUST provide a hardcopy QR code for viewing (4-H members are encouraged to test their codes or links on several devices to check for appropriate permissions for public viewing).

F500038   *Build a Robot (may use kit) — include a robot and notebook including the pseudocodes for at least 1 program you have written for the robot, the robots purpose and any challenges or changes you would make in the robot design or programming. Larger robots are encouraged to enter in class H861003 - Robotics Video. Junk Drawer Robotics do not qualify. Team Entry Option (2–4 4-H Members): team materials must clearly be the work of a team instead of an individual and must have at least 50% of all team members enrolled in 4-H. Additionally, all enrolled 4-H members on the team should complete and attach an entry tag to the materials. A supplemental page documenting the individual contributions to the project should be included. The entry will be judged as a team, with all team members receiving the same ribbon placing.

H861007   Kit Labeled Robot (cannot be free programmed) and Notebook — this class is intended for explorations of robotic components such as arms or vehicles OR educational kits marketed as robots that do not have the ability to be programmed to “sense, plan and act.” The exhibit should include a notebook with the robot the 4-H members has constructed. Included in the notebook should be: 1) a description of what the robot does, 2) pictures of programs the robot can perform, 3) why they chose to build this particular form and 4) how they problem solved any issues they might have had during building and programming. A picture story of assembly is recommended.

H861008   3D Printed Robotics Parts — this class is intended for 4-H members to create parts through 3D printing, to help create their robot or aid the robot in completing a coded function. Project should include notebook describing the process used to create the project, describe the success of your designed piece (did it work), intended use of the product and the modifications made to the item.

*STATEWIDE CONTEST: The Nebraska 4-H Robotics Showcase at the Nebraska State Fair is an in-person contest for 4-H members ages 8–18 (by Jan. 1 of the current year). Contest consists of county-level static exhibit classes F500037 Robotics Video and F500038 Build a Robot. Participants may enter as an individual or as a team of 2–4 4-H members. 4-H members do not need to qualify with a county-level exhibit, but are encouraged to enter their exhibit at the county level to gain feedback from a judge. To participate in the state contest register online at https://www.statefair.org/ag-competitions/livestock-exhibitors/4-h-ffa-exhibitors by Aug. 10 at 8 p.m. For more information, see https://4h.unl.edu/4-h-fairbook-nebraska-state-fair/contests/robotics-showcase. If questions, contact Julie Schultz at jschultz28@unl.edu or 402-375-3310.


STEM GEOSPATIAL

H880001   Poster — create a poster (not to exceed 14 inches x 22 inches) communicating a GPS theme such as How GPS or GIS works, Careers that use GPS or GIS, How to use GPS, What is GIS, GPS or GIS in Agriculture, Precision Agriculture or a geospatial topic of interest.

H880002   4-H Favorite Places or Historical Site Poster — identify a favorite place or historical site (including grave sites) in Nebraska. Exhibit should include latitude and longitude, digital picture and local area map. Poster size should not exceed 14 inches x 22 inches.

H880003   GPS Notebook — keep a log of at least 5 places visited using a GPS enabled device. At least 1 site should be from a community other than where you live. For each site, record the latitude, longitude and elevation. Also include a description of the site, a paragraph explaining what was interesting about the site or finding it. Photos of each site and/or cache are optional but encouraged.

H880004   Geocache — assemble a themed geocache (physical geocache is REQUIRED with exhibit). Each geocache should be a water-tight container. It should include a logbook and pencil for finders to log their visits and may include small trinket, geocoins, etc. for the finders to trade. Documentation should include a title, teaser description and the geographic coordinates of intended placement. Register the site at https://geocaching.com, include a print-out of its registry. The entry may include a photograph of the cache in its intended hiding place.

H880005   Agriculture Precision Mapping — 4-H members will assemble a notebook that will include a minimum of 2 digital copies of various data layers that can be used in precision agriculture to identify spatial patterns and/or correlations (printed copies of websites where applications can be purchased is acceptable). Include a report of how the analysis of the various data will be used to make a management decision.

H880006   4-H History Map — preserve 4-H History: nominate a point of interest for the 4-H History Map Project. Include copy of submitted form in folder or notebook. Write a brief description of historical significance (minimum of 1 paragraph). To nominate a site for the 4-H history map, please go to https://arcg.is/1bvGogV. For more information about 4-H history, go to https://4-hhistorypreservation.com/History_Map. For a step-by-step video on nominating a point, please go to https://tinyurl.com/nominate4h. 

H880007   GIS Thematic Map — using any GIS software, create a thematic map. Thematic maps can utilize any subject of interest to the 4-H member. Maps could be of Amelia Earhart’s journey, Sir Francis Drake’s voyage, population density maps, water usage maps or 4-H projects in Nebraska. Create a GIS Map using data from books and/or internet. Use reliable data, examples: U.S. Center for Disease Control or U.S. Census Bureau. Map any size up to 24 inches x 36 inches, should include Title, Base Map, Neat Line, North Arrow and Legend. Identify the source of your information on the back of the map.

H880008   Virtual Geocache — keep a log of at least 5 places visited using a virtual geocache platform. At least 1 site should be from a community other than where you live. For each site, record the latitude, longitude and elevation. Also include a description of the site, a paragraph explaining what was interesting about the site or finding it. Photos of each site and/or cache are optional, but highly encouraged.


STEM ENERGY

H900001   Create and Compare Energy Resources Poster — poster should explore 2 alternative/renewable energy resources. Compare and contrast the 2 resources including 2 of the following criteria: amount of energy created, costs of production, usability of the energy, pros/cons of environmental impacts, etc. Posters can be any size up to 22 inches x 28 inches.

H900002   Experiment Notebook — notebook should explore the scientific method involving alternative/renewable energy sources. Information required: 1) hypothesis, 2) research, 3) experiment, 4) measure and 5) report or redefine hypothesis.

H900003   Solar as Energy Display/Poster — item should be the original design of the 4-H member. Include the item or a picture if item is in excess of 6 feet tall or 2 feet x 2 feet. Include a notebook of why the item was designed and how it harnesses the power of the sun. Examples: solar ovens, solar panels, etc.

H900004   Water as Energy Display/Poster — item should be the original design of the 4-H member. Include the item or a picture if item is in excess of 6 feet tall or 2 feet x 2 feet. Include a notebook of why the item was designed and how it harnesses the power of water.

H900005   Wind as Energy Display/Poster — item should be the original design of the 4-H member. Include the item or a picture if item is in excess of 6 feet tall or 2 feet x 2 feet. Include a notebook of why the item was designed and how it harnesses the power of wind.

H900006   Other Nebraska Alternative Energy — notebook should explore a Nebraska alternative energy source besides wind, water and solar power. Include information on type of power chosen, infrastructure for distribution, what resources are needed to create this alternative resource, cost of production and potential uses of bioproducts. Examples: geothermal, biomass, ethanol, bio-diesel, methane reactors, etc.


STEM ELECTRICITY

Note: FFA members must exhibit under FFA Static Exhibits, see page 20 of this Fair Book.

Magic Of Electricity - Unit 1

  • No state fair entry

Unit 1 electricity projects may use foam core for display board. May use any dimensions appropriate for the exhibit.

H870901   Quiz Board or Steady Hand Tester — game will be judged for usefulness, craftsmanship and wiring skill. Include battery or power supply to operate exhibit. Questions on the quiz board can deal with any topic. For instructions, contact the Extension office.

H870902   Bright Lights — create your own flashlight using items found around your house. Flashlights should be made out of items that could be recycled or reused. No kits please. LED light bulbs not allowed.

H870903   Control the Flow — make a switch. Use the following items: battery/batteries, battery holder, insulated wire, miniature light bulb, bulb holder, paper clip, cardboard and 2 brass paper fasteners to create a circuit that you can open and close.

H870904   Conducting Things — make a circuit with a switch and a light bulb that can be used to test different household items for their ability to act as an insulator or conductor. You must find 5 items that are conductors and 5 items that are insulators. Create a table that illustrates your results.

H870905   Is There a Fork in the Road? — use the following items to construct 1 parallel and 1 series circuit. Items: D cell battery, battery holder, insulated wire, bulb holder and a 2 or 2.5 volt light bulb.

H870906   Educational Poster — poster should exemplify 1 of the lessons learned in the Magic of Electricity project. Posters can be any size up to 22 inches x 28 inches.

Investigating Electricity - Unit 2

  • No state fair entry

Unit 2 electricity projects may use foam core for display board. May use any dimensions appropriate for the exhibit.

H870907   The Case of the Switching Circuit — use the following items: 2 D-cell batteries, 2 battery holders, light bulb, bulb holder, a 3-inch x 6-inch piece of cardboard, 6 brass paper fasteners and approximately 2 feet of 24-gauge insulated wire to build a 3-way switch. Write a short essay or create a poster that illustrates how 3-way switches function.

H870908   Rocket Launcher — construct a rocket launcher out of the following materials: plastic pencil box that is at least 4 inches x 8 inches, single pole switch, single throw switch, normally-open push button switch, 40 feet of 18- or 22-gauge stranded wire, 4 alligator clips, 2-inch x 6-inch board, 1/8-inch diameter metal rod, rosin core solder, soldering iron or gun, wire stripper, small crescent wrench, pliers, small Phillips and straight blade screwdrivers, drill, 1/8-inch and 1/4-inch drill bits, rocket engine igniters, additional drill bits matched to holes for 2 switches. You must successfully build a rocket launcher and light 2 rocket igniters with your launcher. You DO NOT have to actually fire a rocket off of the launcher. Create a poster using photographs to show the “step-by-step process” you used to build your launcher.

H870909   Stop the Crime — build an ALARM using the following materials: on-off push button switch, mercury switch, vibrating or piezoelectric buzzer, 9-volt battery, 9-volt battery holder, 4-inch x 4-inch x 1/8-inch board to mount circuit on, rosin core solder, soldering gun/iron, 2 inches of 22-gauge wire, wire strippers, hot glue sticks, hot glue gun and a box with a lid to mount your alarm circuit on. Create a poster using photographs to show the “step by step process” you used to build your alarm.

H870910   Poster — should exemplify 1 of the lessons learned in the Investigating Electricity project. Posters can be any size up to 22 inches x 28 inches.

Wired For Power – Unit 3

  • Premiums: Purple $4; Blue $3; Red $2; White $0

H870001   Electrical Tool/Supply Kit — create an electrical supply kit to be used for basic electrical repair around the house. Include a brief description of each item and its use. Container should be appropriate to hold items.

H870002   Lighting Comparison — display studying the efficiency of various lighting (incandescent, fluorescent, halogen, Light Emitting Diodes, etc.). Exhibit could be a poster display or an actual item.

H870003   Electrical Display/Item — show an application of 1 of the concepts learned in the Wired for Power project. Examples: re-wiring or building a lamp, re-wiring or making a heavy duty extension cord or developing an electrical diagram of a house. Exhibit could be a poster display or an actual item.

H870004   Poster — should exemplify 1 of the lessons learned in the Wired for Power project. Posters can be any size up to 22 inches x 28 inches.

Electronics – Unit 4

  • Premiums: Purple $4; Blue $3; Red $2; White $0

H870005   Electrical/Electronic Part Identification — display different parts used for electrical/electronic work. Exhibit should show the part (either picture or actual item) and give a brief description, including symbol of each part and its function. Display should include a minimum of 10 different parts.

H870006   Electronic Display — show an application of 1 of the concepts learned in the Electronics project. Example: include components of a electronic device (refer to page 35 of the “Entering Electronics” 4-H project book. Using the project book is optional.).

H870007   Electronic Project — exhibit an electronic item designed by the 4-H member or form a manufactured kit that shows the electronic expertise of the 4-H member. Examples: a radio, computer or volt meter.

H870008   Poster — should exemplify 1 of the lessons learned in the “Entering Electronics” project. Posters can be any size up to 22 inches x 28 inches.


STEM WOODWORKING

All articles exhibited MUST include a plan (with drawings, sketch or blueprint) stating dimensions and other critical instructions a builder would need to know to build the project and 4-H member's name and county. Plans may include narrative instructions in addition to the dimension drawings and include any alterations to the original plan. Part of the score depends on how well the project matches the plans. If the plans are modified, the changes from the original need to be noted on the plans. Unit 3 or 4 entries must have appropriate finish on their projects to be considered for State Fair.

  • Premiums (except where designated otherwise): Purple $3; Blue $2; Red $1; White $0
  • Special Award to Top Wood Science Exhibit

Measuring Up - Unit 1

  • No state fair entry

H911901   Article Made With Hand Tools — select from Level 1 items such as a flower box, napkin or letter holder, picture frame, coping saw puzzle, sandpaper block, nail point design, wire wiggly, horseshoe tie rack or similar item.

H911902   Second Article Made With Hand Tools — see above class for examples.

H911903   Poster — should exemplify 1 of the lessons learned in the "Measuring Up" project. Posters can be any size up to 22 inches x 28 inches.

Making The Cut - Unit 2

  • No state fair entry

H911904   Woodworking Article — select from Level 2 items such as bird house, footstool, saw horse or similar item. See Extension office for plans.

H911905   Second Woodworking Article — see above class for examples.

H911906   Poster — should exemplify 1 of the lessons learned in the "Making the Cut" project. Posters can be any size up to 22 inches x 28 inches.

Nailing It Together – Unit 3

  • Premiums: Purple $4; Blue $3; Red $2; White $0

H911001   Woodworking Article — item should be made using either joints, hinges, dowels or a dado joint made using skills learned in the “Nailing it Together” project. Item is required to be appropriately finished. Examples: a bookcase, coffee table or end table.

H911907   Second Woodworking Article (county only) — see above class for examples.

H911003   Recycled Woodworking Display — article made from recycled, reclaimed or composite wood. Article must be appropriately finished and/or sealed and utilize 1 or more woodworking techniques from page 2 of the “Nailing it Together” 4-H project book. Exhibit must include the woodworking plan and a minimum 1 page report of how the engineering design process was used to develop the woodworking plan. Engineering Design Process: 1) State the problem (Why did you need this item?), 2) Generate possible solutions (How have others solved the problem? What other alternatives or designs were considered?), 3) Select a solution (How does your solution compare on the basis of cost, availability and functionality?), 4) Build the item (What was your woodworking plan and what processes did you use to build your item?), 5) Reason for article finish (What type of finish, why did you finish or why did you choose this finish?), 6) Evaluate (How does your item solve the original need?), 7) Present results (How would you do this better next time?)

H911004   Composite Wood Project — 60% of the project must be wood and 40% made from other materials such as metal, rubber, resin, etc. All plans and plan alternations must be attached to the article. Protect plans with a cover. If project is designed to be outside it is required to have appropriate outdoor finish.

H911005   Outdoor Wood Project Made with Treated Wood — treated wood projects DO NOT have to have a finished coating. All plans and plan alternations must be attached to the article. Protect plans with a cover. Examples: picnic tables, planters, outdoor furniture, etc.

H911006   Wood Projects Created on a Turning Lathe — article is the object created from spinning wood on a turning lathe. Article must be appropriately finished and/or sealed. Exhibit must include plans detailing design and process of completion, any changes made to the design, details of finishing techniques and other relevant information about the article. Must include a description of tools used.

Finishing Up – Unit 4

  • Premiums: Purple $4; Blue $3; Red $2; White $0

H911007   Woodworking Article — item made using skills learned in the “Finishing it Up” project. Examples include dovetailing, making a pen using lathe, overlays, using a router, etc. Item is required to be appropriately finished.

H911909   Second Woodworking Article (county only) — see above class for examples.

H911008   Recycled Woodworking Display — article made from recycled, reclaimed or composite wood. Article must be appropriately finished and/or sealed and utilize 1 or more woodworking techniques from page 2 of the “Finishing it Up” 4-H project book. Exhibit must include the woodworking plan and a minimum 1 page report of how the design and engineering process was used to develop the woodworking plan. Engineering Design Process: 1) State the problem (Why did you need this item?), 2) Generate possible solutions (How have others solved the problem? What other alternatives or designs were considered?), 3) Select a solution (How does your solution compare on the basis of cost, availability and functionality?), 4) Reason for article finish (What type of finish, why did you finish or why did you choose this finish?), 5) Build the item (What was your woodworking plan and what processes did you use to build your item?), 6) Evaluate (How does your item solve the original need?), 7) Present results (How would you do this better next time?).


STEM WELDING

Note: FFA members must exhibit under FFA Static Exhibits, see page 20 of Fair Book.

All welds exhibited in class 1 or 2 must be mounted on a 12 inches high x 15 inches long display board, not to exceed 3/8 inch thickness. Fabricated board such as plywood, composition board or particle-type lumber may be used for your display. Boards should be sanded and finished to improve their appearance. The finish on a demonstration board will be judged as a woodworking exhibit. Attach each weld on a wire loop hinge or equivalent, so the judge can look at the bottom side of the weld when necessary.

Each weld should be labeled with information stating:
  1. Type of welding process (stick, MIG, TIG, Oty-Acetylene, etc.),
  2. Kind of weld,
  3. Welder setting(s),
  4. Electrode/wire/rod size and
  5. Electrode/wire/rod ID numbers.

Attach a wire to the display board so it can be hung like a picture frame. No sawtooth picture frame hangers accepted.

If no plans are included with welding art, welding article, welding furniture or composite weld, project item will be disqualified.

  • Premiums: Purple $3; Blue $2; Red $1; White $0
  • Note: Must be in your third year of a welding project to exhibit at the State Fair.

H920001   Welding Joints — display of 1 butt, 1 lap and 1 fillet weld. All welds should be made with the same electrode/wire/rod size and number. Welds should be made only on 1 side of metal so penetration can be judged. Welds should be cleaned with chipping hammer and wire brush. Apply a coat of light oil (penetrating oil) to the metal to prevent rusting. Wipe off excess oil. It is suggested that all welds be on the same size and thickness of metal. These pieces, referred to as coupons, should be 1.5 inches to 2 inches wide and 3.5 inches to 4 inches long. A good way to get this size is to buy new cold rolled strap iron and cut to length. The extra width is needed to provide enough metal to absorb the heat from the welding process and prevent the coupons from becoming too hot before the bead is completed. Narrower coupons will become very hot, making an average welder setting too cold at the bead start, just about right in the middle and too hot at the end. The correct way to weld narrow strips is to make short beads and allow time to cool; however, this project requires a full length bead.

STICK WELDING:

  • Suggested coupon thickness — 1/4 inch if using 1/8 inch rod
  • Suggested rod — AC and DC straight or reverse polarity — first E-7014, second E-6013

MIG WELDING:

  • Suggested coupon thickness — 1/4 inch if using .035 wire and 1/8 inch if using .023 wire

OXY-ACETYLENE:

  • Suggested coupon thickness — 1/8 inch
  • Suggested rod — 1/8 inch mild steel rod

H920002   Position Welds — a display showing 3 beads welded in the vertical down, horizontal and overhead positions. It is suggested that all welds be on same size and thickness of metal. These pieces are referred to as coupons. The welds can be on 1 coupon that is about 4 inches x 4 inches or on individual coupons that are about 2 inches x 4 inches and 1/4 inch thick. Suggested rods for this class of position welds for AC and DC straight or reverse polarity is, first E-6013, second E-7014 and E-6010 for DC reverse polarity only. Welds should be cleaned with a chipping hammer and wire brush. Apply a coat of light oil (penetrating oil) to the metal to prevent rusting. Wipe off excess oil.

H920003   Welding Art — any art created using tack welds to hold the metal pieces together (example: horseshoe projects). Type of welder, welder settings, all plans, plan alternations and a bill for material must be attached to the article. Protect plans with a cover. If project is designed to be outside, it is required to have appropriate outdoor finish.

H920004   Welding Article — any shop article or piece of furniture where welding is used in the construction. Type of welder, welder settings, all plans, plan alternations and a bill for material must be attached to the article. Protect plans with a cover. All welds should be cleaned and protected from rust with paint or light oil. Plans are to be complete enough that if they were given to a welding shop, the item could be made without further instructions. Bill of materials should include a cost for all items used including steel, electrodes, paint, wheels, etc. If project is designed to be outside, it is to have appropriate outdoor finish.

H920005   Welding Furniture — any furniture with 75% welding is used in the construction. 60% of item must be completed by 4-H member and notes regarding laser welding or machine welding must be included. Type of welder, welder settings, all plans, plan alternations and a bill for material must be attached to the article. Protect plans with a cover. If project is designed to be outside, it is required to have appropriate outdoor finish.

H920006   Plasma Cutter/Welder Design — plasma cutters/welders allowed for detailed design(s) to butt cut into metal. 4-H members will create a notebook describing the design process to create the “artwork” to butt cut into the metal. In the notebook include: a photo (front and back) of the finished project; instructions on how the design was created (include software used), this allows for replication of the project; lessons learned or improvements to the project and steps to finish the project.

H920007   Composite Weld Project — 60% of the project must be welded and 40% made from other materials such as wood, rubber, etc. Type of welder, welder settings, all plans, plan alternations and a bill for material must be attached to the article. Protect plans with a cover. If project is designed to be outside it is required to have appropriate outdoor finish because project may be displayed outside.


POWER MECHANICS

  • Premiums: Purple $4; Blue $3; Red $2; White $0

H912901   Miscellaneous Engineering Exhibit (county only) — examples: lawn mower engine, restored car, restored motorcycle, lawn mower overhaul, etc.


MODEL VEHICLES

  • No state fair entry

Excludes LEGO-type construction.

For each of the following, attach a report answering any or all of the following questions which apply to your entry: 1) List steps and materials used to create this model. 2) If a kit(s), what modifications, if any, were made. Be specific. 3) What unique difficulties did you encounter? 4) What skills did you learn/use? 5) If a restoration of a previously assembled kit, provide picture or specific information on its condition prior to restoration.

For protection of your model, a plastic display case is recommended.

H940901   Model Vehicle – Scratch Built — includes all vehicles (cars, motorcycles, planes, boats, trains, tractors, etc.). Pinewood type cars and other scratch built vehicles from wood, plastic, paper, metal or a combination are acceptable. Tires, wheels or other minor components may be pre-manufactured.

H940902   Model Vehicle – Assembled Kit — (components coming from 1 or more model kits) includes all vehicles — see above.

H940903   Model Vehicle Diorama — should depict a scene or event which includes a vehicle. Must be no larger than 18 inches x 18 inches.

H940904   Model Vehicle – Restoration of a Previously Assembled Model


SMALL ENGINES

  • No state fair entry

Crank It Up - Unit 1

H890901   Small Engine Display/Item — show an application of 1 of the concepts learned in the “Crank It Up” 4-H project book. Exhibit could be a poster display or an actual item.

Warm It Up – Unit 2

H890902   Small Engine Display/Item — show an application of 1 of the concepts learned in the “Warm It Up” 4-H project book. Examples: comparison of engine oil types, transmissions or safety related to engines. Exhibit could be a poster display or an actual item.

Tune It Up – Unit 3

  • Premiums: Purple $4; Blue $3; Red $2; White $0

H890903   Engine Display/Item — display/Item should exemplify 1 of the lessons learned in the “Tune It Up” 4-H project book. Examples: diagnostic tools, fuel systems, ignition systems. If a complete engine is exhibited it will not be started. However, display needs to report process of building/rebuilding engine and how/where engine will be utilized (i.e. lawn mower, weed eater, snow blower, etc.).