This is a fun activity to do with your kids to review/reinforce the concept of 3-D shapes when learning geometry. You create 3-D shapes using straws, bubbles, and clay. It works really well and my kids have a blast doing this. All the directions, lab sheet, supplies, and examples are on the attached lab sheet. This is a great activity to do when the weather is warm because you will definitely want to do part of it outside - it gets messy when you dunk your shapes!