Encourage S.T.E.M. learning with the Rube Goldberg The Speeding Car Challenge. Designed for ages 8 years and older, this fun kit allows kids to build a chain reaction that will make a car really move! Kids learn important science lessons on gravity and air pressure. Kit includes: 1 base, 1 helping hand, 1 pillow, 1 basketball, 1 holder, 1 pole with cork, 1 nest, 1 chicken, 1 racket, 1 support bar, 1 spare tire, 1 car, 1 balloon, 1 egg, and 1 instruction guide.