Do you like the feel of wind in your face as you plunge down a steep hill? In this title, learn about roller coasters and the science that makes it all possible. This title supports NGSS standards for engineering design. SUBJECT: Science, BISAC: JNF051120, AGES: 6-8, GRADES: 1-3, Guided Reading Level: L, LEXILE: 890L, AR LEVEL: 3.6