This Catapult for Kids craft is both easy and inexpensive to make. Plus it will keep the kids busy for hours which is a bonus in any parent's book. It's a STEM project too, so you'll love that it helps teach them science while having fun!
An entire fun & cheap Science Birthday Party plan. This 1 hour and 30 minute plan is complete with a take-home gift idea, 3 science experiments, the easiest cake idea ever, decorating ideas, and printables