In Beautiful Chemistry, we talk about crystals, quasicrystals and glasses, which are all solids. Here, we see the molecular structure of gases and liquids.

A brief site which defines solids, liquids and gases along with a drawing of each.

Discover how freezing works, when the change of state moves from liquid to solid.

This lesson will introduce the phase changes that occur at the boiling, freezing, and melting points. It is 4 of 4 in the series titled "Boiling, Freezing, Melting Point."

This lesson will introduce the phase changes that occur at the boiling, freezing, and melting points. It is 1 of 4 in the series titled "Boiling, Freezing, Melting Point."

This lesson will introduce a phase change diagram, and show how a substance changes from one phase to another. It is 2 of 3 in the series titled "Phase Changes."

The rectangular offering table with gifts of food and drink carved on its surface was found in Sennedjem's tomb. Two basins for water or other liquids are depicted on top of the table with a broad space between them for solid offerings.

A brief site which defines solids, liquids and gases along with a drawing of each.

This resource provides a brief overview of friction. Its' affects on solids, liquids and gases is described with diagrams. An explanation of how friction is measured is included in the discussion. An online quiz can be used to check your...

This diagram labels the typical parts of a filtration experiment. Included in the equipment labeling are: buchner funnel, moistened filter paper, porous plate (plate with holes in it), rubber tubing, buchner flask and rubber bung....