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Shipping Policy
from AC Supply
Take 10% off $200.00 or more assorted K'NEX everyday
This applies to ALL K'NEX including specials

Roller Coaster Physics

Bonus
Buy 1 - 78880 Roller Coaster Physics,
Get 1 - 78910 Education twin DC motor pack FREE ($19.99 value)
each motor requires 2 AA alkaline batteries (4 total)
  • A 2025 piece set to build 11 different classic roller coaster designs including
  • Large roller coaster with clothoid loop
  • Half pipes (with loops)
  • Inclined planes (with curves and loops)
  • Ball ramps
  • Build two large models simultaneously
  • Compatible with datalogging sensors from Vernier, Pasco and Texas Instruments
  • a 64-page teachers guide includes 9 full lesson plans; formative rubrics; correlations with National Math and Science standards
  • Supports 8 students in grades 8 -12
  • All stored in 3 large silver storage trays, with moveable dividers and snap on lids

Models Included
  • *Large Roller Coaster with Clothoid Loop
  • 2 Half-Pipe Systems
  • 2 Inclined Planes
  • Inclined plane with Circular Loop
  • Gravity-Fed Double Hill
  • *Roller Coaster without Loop
  • Half-Pipe System with Loop
  • Inclined Plane with Curve
  • Inclined Planes with Clothoid Loop

*Denotes motorized option for model

All K'nex orders totalling $200.00 will recieve another 10% off
This discount will not be reflected on your shopping cart, but will be deducted from your invoice!

KNX78880
YOUR COST BEFORE DISCOUNT: $219.95
Part # Name Your Cost QTY
KNX78880B K'NEX Roller Coaster Physics
w/free motor pack ($19.99 value)
New & in stock
Price before
discount
219.95
EVEAA4 Eveready Energizer 4pk 2.79

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