Chemistry

Diffusion is the 'random' movement of one type of particle into and through another.

Solids

Melting

Freezing

Liquids

Evaporation

Condensation

Gases

Sublimation

Sublimation is when a solid changes state into a gas whithout going through the liquid state.

crystilisation

You evaporate the liquid and in the petri dish and you will have left the soluble solid.

filtration

You add liquid to the non soluble and soluble mix and then filter it so the soluble and non-soluble are seperate.

cromatography

Its to show the solubility of the ink colours. The more soluble the liquid the further the ink of that colour goes.

Compound

A compound is two or more elements chemically joined together

Element

An element is a substance that contains only one type of atom

Molecules

Molecules are 2 or more same or different atoms

Mixture

A mixture is two or more different elements in one space not chemically bonded

Atoms

The smallest unit of an element

There are three types of particles that make up an atom, protons, neutrons and electrons. The protons and neutrons make up the nucleus. The electrons are spread out around the edge of the atom in layers called shells.