Get Ready to Discover the Exciting World of Science – Seatbelts, Everyone! Based on the popular book series, these fun and exciting kits are sure to engage children of all ages! Ms. Frizzle and her class take students on a wild ride into the spectacular world of science. Each kit comes with a colorful manual and provides challenging and exciting hands-on experiments. A Journey into the Human Body. Bend bones, make joints, map taste buds, expand lungs, build a stethoscope, measure lung capacities and heart rates, perform the iodine starch test, spin glitter, simulate synovial fluid, create a human body poster, and more!