Investigating Air

We are learning to investigate and identify the properties of air. We know that air can take up space inside a plastic bag and that air is invisible. Did you know that air is also strong? We blew up some snap-lock bags and lay them on the floor. Then we turned a table upside down and put it on top of the bags. Then one by one we hopped on the table. The air bags could hold up 4 children. When the fifth child stood on the table one bag popped. When the sixth child stood on the table the bags collapsed.