Chemistry
Diffusion
Diffusion is the 'random' movement of one type of particle into and through another.
States of Matter
Solids
Melting
Freezing
Liquids
Evaporation
Condensation
Gases
Sublimation
Sublimation is when a solid changes state into a gas whithout going through the liquid state.
seperation techniques
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.
Atoms
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
Atomic Structure
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.