Awesome Science!!!
Today, in 4th Grade, we saw what happened when different liquids and solids mixed together. We ventured outside to explore what happened when we mixed Baking Soda and Vinegar together.
We knew immediately that something happened to make the balloon inflate. After some searching through our brain for the memory of what we had read from the book recently, we remembered that a chemical change occurred. This chemical change created a new substance called Carbon Dioxide that inflated our balloon.
Our next experiment was even better. A mixture of 20 volume (6%) Hydrogen Peroxide and dish soap were put in a bottle. Yeast that had been mixed with warm water was added to the bottle.
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| WE GOT FOAM!!!!! |
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| LOTS OF FOAM!! |
We learned that once the yeast was added in, it drew out the oxygen from the Hydrogen Peroxide causing it to foam up. The foam was the oxygen escaping from the bottle. The extra bubbles on the right were created when (after someone wanted to investigate further) we poured vinegar and baking soda (from the previous experiment) on the foam. We had even more chemical changes happening right in front of us!
A few student responses were…
WHOA!!
COOL!!!
OH MY GOSH, ITS GOING TO EXPLODE!
Science is AWESOME!
Thank you for this fun science day! My daughter came home asking if we had vinegar and baking soda ... I was very suspicious! :) She is excited about science and I'm pretty sure that's a first for us.
ReplyDeleteJennifer Moody