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 ...

Everything around you - and even your body - is made up of the three phases of matter. Let's find out more. The whole world and everything we can see around us is made up of matter. Matter can be ...

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 ...

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 ...

Almost everything is made of particles. Particles can be atoms, molecules or ions. Particles behave differently in solids, liquids and gases. The particle model explains the differences between solids ...

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 ...

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 ...