Action & Reaction Speed Race

A Science Building Kit To Create Endless Circuits With Surprising Effects Contains Many Special Pieces To Create Endless Paths That Can Also Be Customized With Household Objects So You Don'T Leave Limits To Your Creativity! Challenge The Laws Of Gravity With Looping, Double The Courses With The Deviations, And Create Amazing Special Effects With The Spiral And When The Ball Arrives At The End Of The Track... The Game Is Taken Back With The Manual Lifting System! The Textbook Will Help Children Learn The Principles Of Physics, By Offering Creative Ideas To Build Circuits With Increasing Levels Of Difficulty