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 ...

We all know from middle school science class that matter changes between a solid, a liquid, and a gas when you change the temperature or pressure acting on it. (Yes, some elements will change directly ...

An illustration of the excitation of a spin liquid on a honeycomb lattice with neutrons. Genevieve Martin, Oak Ridge National Laboratory For years, students have learned that there are four observable ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A new kind of matter can be both solid and liquid at once. In this chain-melted state, molten and ...

Students are introduced to the idea that matter is composed of atoms and molecules that are attracted to each other and in constant motion. Students explore the attractions and motion of atoms and ...

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 ...