Today we experimented with baking soda and vinegar which resulted in gas.
Take one small empty plastic soda or water bottle and carefully pour 1/2 cup of vinegar into it.
Then put 1 teaspoon of baking soda in a small balloon. Next carefully put the neck of the balloon all the way over the neck of the bottle without letting any baking soda into the bottle.
Now for the fun part…choose a brave participant to lift the balloon up so that the baking soda falls from the balloon into the bottle and mixes with the vinegar. Watch the balloon fill up. My daughter Victoria said, “I’ll remember this the next time I want to blow up a balloon, so I don’t have to blow it up myself”. Ha! 🙂
Put 1/4 cup of pretty warm water into a small (sandwich size) zip-lock bag. Then add 1/2 cup of vinegar to the water in the bag.
Put 1 and 1/2 tablespoons of baking soda into the middle of a tissue, wrap up the tissue paper by folding it.
Now partially zip the bag closed but leave enough space to add the tissue with the baking soda in it. Once you place the baking soda packet inside the bag, quickly zip it up completely closed and drop it on the ground.
Let the expanding begin and if all goes well, you might just hear a little POP!
So, what just happened?
Take out the science notebooks/logs for the simple explanation. When the baking soda and vinegar are mixed together they create a gas, (carbon dioxide – the stuff we breathe out) gasses need a lot of room and the carbon dioxide starts to fill the bag, and keeps filling the bag until the bag can no longer hold it any more and, POP or Ssss!
Now it’s your turn to go outside, have fun and be safe!