Conduct investigations to identify characteristics of gases, and learn about the gases that make up our atmosphere. Explore features of solids, liquids, and gases while noticing that substances can ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

We explore Supercritical Fluids and how being "in the between" is their superpower. Supercritical Fluids are one the strangest states of matter and yet they are found everywhere from Decaf Coffee, to ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

For more than a century, schoolbook physics has divided matter into neat categories like solid, liquid, gas, and plasma. A ...

The melting of materials seems like a simple phenomenon. However, when their thickness is reduced to just a few atoms, ...