Thermoplastic Polymers ( plastics) are used to make a huge range of everyday objects

Many organic molecules can be made to join up with one another to form very long molecules which can be thousands of atoms long. This makes new materials with water resistant properties.  Many of these materials will soften when heated and can therefore be easily moulded into complex shape.These materials are known are...

Accounting for electrons. The images in this slideshow here show how we can account for the way in which electrons are shared between atoms.  Use the first of the three buttons to the top left of the animation to see the outer electron configuration of each atom. Construct a table to show the name of the molecule, formula, no.of bond...

The Bast furnace enables us to extract pure iron from iron oxide

Modern methods   Activity 1 : Phytomining and Bioleaching Watch the video carefully, stopping where necessary to answer the questions below: QuestionsAnswers  Explain the main difference between high grade ore and low grade ore.What is happening to the supply of high grade copper ore?Explain what is meant by bioleachin...

Particle theory explains why the smell of cooking in the kitchen can quickly be smelt by people in other rooms.

 1.3 Activity 4. A particular problem  Students should: 1.3 understand how the results of experiments involving the dilution of coloured solutions and diffusion of gases can be explained. Particle theory states that all matter consists of many, very small particles which are constantly moving or in a continual state of motion. T...

Solid, liquid or gas?

 1.1 Introducing the states Matter can exist in one of three fundamental states: Solid, Liquid or Gas Here we consider the way in which these three states behave We see how matter can be converted from one state into another and we introduce the terms used for these changes. Evaporation, condensation, melting, freezing , sublimation and deposi...