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

Elisa Oviedo transforms water from liquid to solid. Elisa Oviedo and her niece change water from liquid to solid using a freezer. Then they heat water up on the stove until it turns into gas. Elisa ...

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 ...

High school science misses a lot of the science researchers actually work with. For example, you learn that there are three states of matter—solid, liquid, and gas—but in advanced physics, things get ...

Precisely formulated gas mixtures with known concentrations of particular target gases are referred to as calibration gas standards. To guarantee the accuracy of gas concentration measurements, almost ...

Hydrogen has long played a key role as an industrial feedstock in petroleum refining, fertilizer production, and chemical manufacturing. However, conventional methods of producing hydrogen generate ...

Know your options when selecting the appropriate flowmeter technology to measure natural gas, water, and steam in power generation. In many chemical plants, the electricity the plant uses is derived ...