Baking Soda and Vinegar Rockets
...it happens so quickly I couldn't get a picture
What you need:
Film Canister...we used a sprinkle jar with a push on top
Baking Soda
Vinegar
...Put the baking soda in the lid, pour vinegar into the canister, quickly put the lid on, sit on ground and watch it explode!
...You will have to experiment with how much baking soda and vinegar you need. This is part of the fun!
Afterwards we had freeplay...with the vinegar and baking soda! I let the kiddos just have at it...they had a blast.