We've all seen balloons float, but what makes them float? We might be able to understand why a small birthday balloon can float, but what about the big giant Thanksgiving day parade balloons? Why can those float? We also learn why we use Helium instead of Hydrogen, even though Hydrogen would be better at making balloons float. It's never too late to learn about the world around you. &nbsp;
This is part of our Holiday unit. &nbsp;
Resources from this episode: 
<a href="https://science.howstuffworks.com/helium2.htm" target="_blank">How Helium Balloons work</a> 
<a href="https://flexbooks.ck12.org/cbook/ck-12-middle-school-physical-science-flexbook-2.0/section/12.6/primary/lesson/buoyancy-ms-ps/" target="_blank">Buoyancy</a>
Watch the podcast on <a href="https://www.youtube.com/channel/UChz1tQi9Ez14-lqkzS44KYw">YouTube 
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Theme Song: 
<a href="https://freemusicarchive.org/music/Latch_Swing/demo_2008/Swing_39">Swing 39 by Latché Swing 
</a>Licensed under an Attribution-Noncommercial-Share Alike 2.0 France License

Lesson 47 - How do Christmas lights work?

Have you ever felt like you slept through science when you were in school, but now wish you could understand the world around you better? Then this podcast is for you! Each week Cheryl asks a science question and Ryan, a science teacher, does his best to answer. From boiling water to shooting stars and everything in between, listen along and learn about the science you encounter every day.