Solids, liquids and gases. In a solid like this brick, the particles are regularly arranged touching their neighbours and move only by vibrating. This explains why solids have a fixed shape. In a ...

Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences, Vol. 221, No. 1144 (Jan. 7, 1954), pp. 1-28 (28 pages) This paper considers the flow of a gas through a porous ...

Researchers report that the way a tissue's cells are arranged can serve as a fingerprint for the tissue's 'phase' -- whether it is more like a solid, liquid, or gas. For example, tumors that are more ...

Everything in the universe is made up of matter, small non-visible particles called molecules and atoms. At school, we were taught that there are three states of matter; solid, liquid and gas.

Ellingham diagrams are very powerful phase diagrams to evaluate equilibrium phases under gas-solid reactions. Those phase diagrams were extended to higher pressures to examine stable phases under high ...

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 ...

The units of density depend on the units used for mass and volume. The most commonly used units are grams per cubic centimetre (g/cm³) or kilograms per cubic metre (kg/m³). These balloons are the same ...