Lesson 53 What seems like a simple question ends up being more difficult that you might think: what exactly is fire? Is it a solid? A gas? Something else? And what causes the actual light we see? This week Cheryl &amp; Ryan tackle a listener question from Katie that turns out to be something lots of people have asked and others have struggled to answer. It's never too late to learn about the world around you. &nbsp;
This is a listener question!
Resources from this episode: 
<a href="https://science.howstuffworks.com/environmental/earth/geophysics/fire1.htm" target="_blank">What is fire?</a> 
<a href="" target="_blank">What is fire?</a> (YouTube) 
<a href="https://www.stonybrook.edu/commcms/alda-center/thelink/posts/The_Flame_Challenge.php" target="_blank">The flame challenge</a> 
<a href="https://www.youtube.com/watch?v=5ymAXKXhvHI" target="_blank">What is a flame?</a> &nbsp;(YouTube) 
<a href="https://edu.rsc.org/everyday-chemistry/what-state-of-matter-is-fire/4015393.article" target="_blank">What state of matter is fire?</a> &nbsp; 
<a href="https://engineering.mit.edu/engage/ask-an-engineer/is-fire-a-solid-a-liquid-or-a-gas/" target="_blank">Is fire a solid, a liquid, or a gas?</a> &nbsp; 
<a href="https://van.physics.illinois.edu/ask/listing/19592" target="_blank">What is the state of matter of flame?</a>
 
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Lesson 54 - What is the vacuum of space?

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.