STEM idea: One of the most popular challenges is the Spaghetti Tower (sometimes called Marshmallow Tower) challenge. It's actually a completely doable, fun way for your kids to experiment, collaborate, and problem solve.
Gas Laws Manipulative - something I learned from another AP chemistry teacher years ago. Continuing the tradition of instructional sharing - I passed on the trick to a group of chemistry teachers today. Cover the variable that is constant (in the problem) and observe the relationship between the other two variables. #chemistry
Erosion vs Weathering ~ Awesome Science STEM Activities