Build marble roller coasters from paper in this fun activity! You can find written instructions for the project on the Science Buddies website: https://www.sciencebuddies.org/stem-a...Are you a teacher? Use this activity to teach about engineering design or kinetic and potential energy! See the classroom lesson plan version of the instructions: https://www.sciencebuddies.org/teache...A free template for the roller coaster pieces is available for download here: https://www.sciencebuddies.org/scienc...******************************* Connect with Science Buddies: TWITTER: https://twitter.com/ScienceBuddies FACEBOOK: https://www.facebook.com/ScienceBuddies INSTAGRAM: https://www.instagram.com/scibuddyPINTEREST: https://www.pinterest.com/sciencebuddies