24 Simple Machines projects for kids - so many clever, fun, and unique science experiments to explore simple machines for classroom, science project, and homeschool for kindergarten, first grade, second grade, third grade, fourth grade, and fifth grade. PLUS love the 5 week unit diving more in depth along with free printable simple machine worksheets for kids!!
Engineering Project for Kids: Build a Straw Roller Coaster
Balloon and straw tower. Competition and activity to promote group work, team work, etc. Give teams tape, balloons, and straws. Give them a time limit. The goal is to create the tallest structure that can stand alone.