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Next, in our series, is our Valentine’s Day Science activity. This Valentine’s science activity can easily be adapted to kids of different ages and is sure to pique your young scientists’ curiosity!
Dancing Candy Hearts
This activity was so easy peasy! All you need is a clear glass, candy conversation hearts, and a Sprite.
First, I had Little Man pour the Sprite into the glass. The size of the candy hearts will determine how much Sprite you need to pour into the glass. We had bigger hearts so we had to fill it a little more than halfway to get this activity to work.
Next, you start by dropping in one heart. Give it a few seconds but soon it will be dancing!
Lastly, drop in some more hearts so that the first one can have a dancing partner. How fun! Little Man was so excited when it started bopping at the top of the glass. Of course, we had to put on some music for our dancing little hearts too.
The Science Behind It
Of course, my curious Little Man had to know why the hearts danced. If your little one is just as inquisitive as mine here is the break down so that you can have that conversation. Carbonated drinks, like soda, have tons of dissolved carbon dioxide gas in them. The carbon dioxide is what makes them bubbly. You can’t see the bubble when your drink is sealed though right? Well, that’s because the way these drinks are packaged force the gas to stay put by putting pressure on it. When you open it though, that pressure is released and causes the little bubble that you see. The candy hearts are denser, or heavier than the liquid soda so initially, they sink to the bottom. As they sit, the carbon dioxide gas bubbles stick to the hearts until enough of them have latched on to make it light enough to float. The hearts dance because when they get to the top some of the bubbles are released into the air. This causes the heart to drop but then more bubbles latch on and it floats again. This creates the dancing effect.