Interactive science learning.</br>2 motor actions.</br>Learn about gravitational force.</br>Build a Roller Coaster.</br></br>Product Description</br></br>Engineer a challening game with your friends and family. Great interactive science learning. Connect the wires and circuits to build this fun Roller Coaster Game to play with friends! Create 2 awesome actions with a motor and learn about momentum and speed. Learn about gravitational force and have fun learning about science. Ages 8+.</br><br/>http://www.amazon.com/gp/product/B00MEQTALI