Grades: 1-5Time: 7 projects; 20-30 minutes eachSIMPLE MACHINES AND FORCES is an amazing book full of hands-on activities. Learn about simple machines and forces by building them; using easy materials from around the house or stores.Fun with Science, Technology, Engineering, Art and Math project ideas. It is a great way to acquire 21st century skills and STEM learning.Inside this book you will find projects on:PulleySeesaw,Merry go-roundShoebox ProjectorZip line and many moreBuild your own Simple Machines and learn about forces!