Definitely a successful kids’ science experiment at our house! The Science Behind It Then he sat back and watched with super excitement as the hearts began bobbing up, down and all around the cup. Grabbing the sparkling water bottle with both hands, he slowly poured in about 1 cup of water.

Then, he carefully picked out a handful of his favorite conversation hearts and laid them on top of the tablets. We were now ready for the bubbly kids’ science experiment to begin! Middle Brother crushed up the Alka Seltzer tablets and placed them in the bottom of our glass. It’s not required though – the science activity worked with ordinary tap water, too.ĭancing Conversation Hearts Kids’ Science Experiment It really took their shimmies and shakes to the next level. Since conversation hearts are a little heavy candy-wise, the winning combination was a whopping four Alka Seltzer tablets and some sparkling water. We tried this experiment several times using different numbers of Alka Seltzer tablets and either tap or sparkling water.

1 cup of sparkling water (ordinary tap water works too).So when I saw conversation hearts at the Dollar Tree store, I knew they’d be perfect for a new kids’ science experiment: dancing conversation hearts!įollow the simple step-by-step below and then grab 30 more easy-to-follow science experiments kids will beg to repeat (plus a no prep science journal to keep track of their results!) in our shop! After making gummy worms dance a few months back, my boys have been BEGGING to make something else boogie and shake.

Conversation hearts