Our Saint John School 4th Grade classes put physics into motion! This hands-on project focused on using energy and forces and was displayed from a marble test through the designs of the 4th grade groups. These students learned about velocity, air resistance, and kinetic energy while they designed and constructed their roller coaster models. Adding potential energy, inertia, acceleration, and gravity to the mix, our SJS students cheered each other on when the marble test occurred. Well done 4th grade scientists!