Junkyard Challenge - Virginia Science Olympiad

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Transcript Junkyard Challenge - Virginia Science Olympiad

Science Olympiad 2011 Coaches Clinic Division B Justine Cromer, Instructor

Teams construct a device on-site, from materials in their “junk box”, to solve an engineering challenge

 Impound event & sign-up for start time  Team of up to 2 students  Safety – each student wears protective eye gear w/sides  Goggles not impounded  Times – Build ≤ 30 minutes/Test ≤ 2 minutes  Event supervisor – measuring device and stop watch

junk box requirements

 All materials must fit in the box w/a lid  Widest outside dimensions = ≤95.0 cm (L+W+H)  EX: 30 + 30 + 32 = 92cm  Equivalent to 37.4 inches  Buy or construct from scratch  Not used for competition – except as a collection container at state tournament for Ramp challenge  If box is too big, you will be ranked below teams with the correct size

materials

 All materials must fix inside the junk box with lid on  Materials must be unaltered and removed from original (store) packaging  Must meet requirements or be ranked below other teams who do  No preassembly allowed

materials

 Practice golf balls* ≤ 5  Plastic  Golf balls* ≤ 8  Tennis balls* ≤ 10  Plates* ≤ 10.5 inches  Paper or Styrofoam  Cups* and bowls  Paper or Styrofoam  Straws or hollow stir rods  Paper /soft plastic ≤ 24 cm  Popsicle /craft sticks ~12x1 cm  Toothpicks – wood only  Spools of string, line, thread or tape (non-metallic)  Paper ≤ 8.5x11 inch/ ≤ 20lb  Rubber bands ≤ #64 (1/4”)  Plastic bags ≤ 1 gallon  Scissors (only as a tool) *Must bring at least one

devices – scoring summary

CAT A: REGIONALS  Bridge – longest  Ties – height to load  Tower - tallest  Ties – narrowest base  Cantilever – longest  Ties – shortest length to edge of counterbalance CAT B: STATE  Elevated ramp - longest  Ties - tallest start point  Catapult – furthest  Ties – shortest device heights  Bounce – furthest  Ties – smallest bouncing surface

general rules

CAT A: REGIONALS  Event supervisor specifies type ball prior to construction  Free-standing cup holds ball  Measurements taken before ball placement  Junk box cannot be used as part of device CAT B: STATE  Teams decide which type of ball(s) and how many to use  2 min to release all balls  Junk box or container for Ramp device only  Plate for Catapult or Bouncer targets

regionals - bridge

 Free-standing bridge that supports cup with ball for at least 5 seconds  Longest open span in mm.

 Ties – height to bottom of load

regionals - tower

 Tallest free-standing tower that supports cup with ball for at least 5 seconds  Highest to bottom of load  Ties – narrowest base

regionals - cantilever

 Longest cantilever laid out from table edge that supports cup and ball for at least 5 seconds  Measured distance parallel to ground  Cannot use box or scissors for counterbalance  Cantilever must touch table  Ties – edge of table to far side of balance

state – elevated ramp

 Build a free-standing ramp that transports balls from a start point to collection container – no flat areas  Longest distance from “closest” successful start point and front edge of container (ramp not touching container)  Bonus pts for each ball in container  Tie – highest successful start point

state - catapult

     Free- standing catapult that launches balls to hit a target plate (on first impact) Requires a trigger – cannot touch ball once on device Furthest distance from closest edge of catapult to front plate - bonus pts for each ball to hit the plate Bonus pts for each ball to hit plate Ties – shortest height to catapult

state - bounce

 Free-standing bouncer that bounces balls to hit a target plate (on first impact)  Student drops balls onto bouncer  Furthest distance from closest edge of bouncer to front plate  Bonus pts for each ball to hit the plate  Ties – tallest height to center point of bouncing surface

bonus points – state only

 Significant advantage for successful hits  D x (n + 1)  D = measured distance  n = number of successful hits  EX – 2 balls hit = 20 x (2+1) = 60 pts  EX – 5 balls hit = 20 x (5+1) = 120 pts  Teams release the balls  Choose plastic golf (≤5), standard golf (≤8) or tennis balls (≤10)

violations

 Violations will rank teams below all others w/out violations  Includes…pre-assembly, incorrect use of materials or tools, missing required material, not free-standing, does not meet minimum requirements, or not impounding on time  Also includes outside help once competition begins  Read carefully rules about moving targets and devices after competition begins, i.e. in between shots

Contact

Resources: www.soinc.org

Score sheet – coming soon Justine Cromer [email protected]

Head Coach – Kilmer Middle School 4 th year in Science Olympiad ??QUESTIONS??