Mrs. Moore’s 5th Graders at MHS Designed STEM Rollercoasters Dec 06 2017 Mrs. Moore’s 5th Graders at MHS designed and built their own STEM rollercoasters in class to assess differences between potential and kinetic energy. Submitted by Elizabeth Gaither. Permalink: https://www.walton.k12.fl.us/2017/12/mrs-moore-s-5th-graders-at-mhs-designed-stem-rollercoasters