Rubber Band Racer. Mini Wind Turbine Activity. Air Racer Activity. Sail Car Activity. Hydraulic Claw Activity Pack. Soldering Package: Soldering Iron, LeadFree Solder Stand "Catch the Bug" The Ultimate Electronics Activity. BuildaBoat / Electric Motor Boat Activity. Projectile Launcher Wind Lift, Wind Turbine Activity. Hydraulic Arm Activity Pack. Grab Lab Activity. Electric Race Car ...