Science - Force - Push and Pull

 Today in science class, we were talking about making things move using force.  The two types of force we talked about are push and pull.  So, I gave them a ballon cup popper to experiment with pieces of sponge.  They put a piece of a sponge in the cup, pulled back on the ballon, and then let go.  That pushed the sponge out.  I loved hearing the laughter.

How to make a balloon cup popper:

I used a paper cup and cut out the bottom.  Also cut a small hole at the end of the balloon and tie off the other end.

Stretch the hole of the balloon over the cup.  I taped them to get them to stay.  I bought a sponge and cut it up into pieces.  

HAVE FUN!!!!