Activities
Reactions of halogens & halide ions
This practical looks at some of the chemical properties of chlorine, bromine and iodine including their redox reactions and also some of the reactions of their ions in aqueous solution. The physical properties...
Activities
Elements & oxides of Period 3
Topic S3.1 Periodic table - classification of elements requires you to know some of the physical and chemical properties of the elements, in particular some of the general trends across periods and down...
Activities
Determining the mass of argon in the room
This is a simple exercise but you can learn much about many of the skills required by the syllabus including calculating individual and overall uncertainties and percentage error. This is a simple but...
Activities
Common chemical reactions
This practical familiarises you with working in the laboratory. It helps you learn the English names for chemicals and common apparatus (if you do not already know them) and gives you 'hands on' experience...
Delivering the programme
Making links between topics
The IB has constructed the syllabus under the two main strands of ‘Structure’ and ‘Reactivity’. Teachers and students need to be able to make links between all the different sub-topics under these two...
Assessment
IA preparation activity
The following pages contain some activities to remind you of the tools, skills and other top tips worth remembering before you begin your internal assessment write-up. There are quizzes to complete as...
Assessment
Identifying and fixing mistakes
There is a lot to remember for your IA, so it is easy to slip up and make mistakes. Careful checking will identify slips that can be remedied, improving your overall mark with minimal time investment!...
Assessment
Plotting graphs
Plotting a graph, whether by hand or using software, is an important skill for many IA experiments. Sketching graphs with unscaled axes to qualitatively describe trends is fine when required in an exam,...
Assessment
Understanding variables
Variables are the quantities and conditions that you change or measure in an experimental procedure. There are different types of variables. The variables you should identify explicitly in your IA are...
Assessment
Understanding error
All measurements and values derived from measurements have some error. Error is the difference between the measurement or the value that has been found and the true (or accepted) value. Values are accurate...