iPad apps - CHEMISTRY

1. MOLECULES - Free - View/manipulate 3D molecular structures

2. PERIODIC TABLE, K12 - Free - Simple but comprehensive, interactive

3. PERIODIC TABLE PLUS - £0.69 - Interactive periodic table with 'pick and place' game

4. TEMPCONVERT - £0.69 - Simple temperature conversion

5. ONSCREEN DNA MODEL - £2.49 - 3D DNA model to play with.

6. THE ELEMENTS - £9.99 - Expensive for just Information and 3D images but high quality.

7. NUCLEAR - Fre/£1.99 - Explore chemical elements at atomic level by building them.

8. LABASSISTANT - Free - Chemical compatability guide - text only.

9. MAHJONGCHEM - Free - Game of matching tile sets, lots of categories.

10. ORESOME ELEMENTS (QRC) - Free - Drag and drop periodic table game, fun.

11. GENE SCREEN - Genetics interactive content

12. ELEMINTS: PERIODIC TABLE - Free/£2.99 - Colour coded periodic table with interactive graphs in pay version.

13. ELEMENTS QUIZ - £1.49 - Quiz, iphone layout

14. BUFFERS - £1.49 - Chemistry/biology calculator for buffers, pH, concentration, volume and temperature.

15. BALL AND STICK - Free - 3D atomic structure. Limited.

16. ATOM BUILDER - Free - Atom building game

17. CHEMISTRY FORMULA PRACTICE - Free/£1.49 - Learn formula by quizzes

18. BUILDING ATOMS, IONS AND ISOTOPES HD - Free/£1.99 - Explore composition of elements by building them.

19. ATOMS IN MOTION - £1.99 - Atomic simulator.

20. ELEMENTAL - Free - Draw chemical structures, calculate cheminformatics, good sharing options.