Why do baseballs have stitches? Why do football have an oblong shape? How does a Ping-Pong ball change if you fill its center? Through these fun, step-by-step experiments, you will discover the science behind the sports that you play. Take home a trophy for the science fair this season!
|Library Bound Book||978-0-7660-7026-4||$37.27||$27.95|