Snowman Bags

During our STREAM time today, we explored a reaction between vinegar and baking soda.  Students created a baking soda "bomb" from a tissue square and baking soda.  They decorated a zipper bag with a snowman face, and added their baking soda bomb to their bag.  

Next, each student was given a squeeze bottle of about 1/4 cup of vinegar.  The bag was sealed, except for a small corner.  We added the vinegar to the bag outside, and then sealed the bag completely.  Students shook their bags and observed what happened when the vinegar and baking soda mixed.  We discovered that a gas was formed: carbon dioxide!

This experiment was a great example of all three states of matter.  We have been discussing states of matter: solid, liquid, and gas.  Today, in this experiment, we observed what happens when a solid (baking soda) combines with a liquid (vinegar) to create a gas (carbon dioxide).  Matter is magnificent!