The little spheres represent water molecules. Molecules are in constant motion. The attractions water molecules have for each other keep them close together. They can move past each other, but their ...

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 ...

Their aim, they say, is to “survey all the known instances of domain movements in proteins and other molecules for which there is experimental evidence for the movement”. The database is first ...

liquid and gas. Gas laws and the kinetic model The behaviour of gases is described in terms of the kinetic theory, which considers the motion of molecules in the gas. The gas law links pressure ...

The hydrogen bonds that form water molecules are responsible for the many properties that make water a unique liquid. However ...

Unlike in ice, these bonds are broken and re-formed on average 1 trillion times per second in liquid water, so that the water molecules can be packed closer together and move very quickly.

as their constituent molecules are perpetually frozen in a state of disorder. Similarly, supercooled liquids are not quite solid, in the sense that their fundamental particles do not stick to a ...