Build a roller coaster for a ping pong ball out of straws, hot glue, and a cardboard box for a base. This STEM challenge for kids is awesome because the materials are so simple and inexpensive! The track is surprisingly sturdy, and kids will have a blast
Teach with Trash: Tissue Box Science It would be a good idea to use these as mystery boxes. Place six items in boxes and have them guess what the objects are or what they may all have in common. Could be used to introduce a new unit or book.
EXPLORATION & DISCOVERY:A place to mix and smash plants and water, needs only a few bowls and a stick, but is a great place to learn about how things change and sense of capability. medicine making - Stomping in the Mud