Our all-in-one activity tub contains everything you need to help students learn about simple machines as they build marshmallow catapults, create their own pulley systems and more! You get 8 different experiment cards with involving activities based on national science standards. Plus, we’ve included tons of materials to complete each experiment and explore concepts in depth from a spring scale and lever to a fun flip book, vocabulary cards and full colour charts that make concepts easy to grasp! You even get a handy guide filled with reproducibles, extension ideas and more.