Latest updates

International-Mindedness in Science28 December 2020

2020 has been a difficult year for the whole world due to Covid-19. Despite all the sad deaths, economic and educational hardship suffered, one shining example of the human spirit has emerged. Collaboration,... more

HL Multiple choice tests on individual topics1 December 2020

For more information about the multiple choice tests and to download the blank answer sheet see Multiple choice tests for each topic1. Stoichiometric relationships (1)1. Stoichiometric relationships (2) more

2 &12. Atomic structure (2)1 December 2020

For each question choose the answer you consider to be the best.1. What is the symbol for a species that contains 8 protons, 9 neutrons and 10 electrons?A. N3− B. F−C. F− more

Persistent organic pollutants28 November 2020

The effects of xenobiotics are covered both in Option B Biochemistry & the environment and in Option A Environmental impact - plastics. The presence of persistent organic pollutants (POPs) in the common... more

Update on the implementation of the new programme9 October 2020

With all the uncertainty and extra pressure on schools, teachers and students caused by the Covid-19 pandemic, which seems likely to continue for some considerable time yet, the IB has announced a delay... more

Setting assignmentsFree27 September 2020

Once you have given your students access and they have signed themselves up, not only can they access the pages you allow them to see, but you can also set assignments. An 'Assignment' is a task set by... more

HL Multiple choice 'quizzes' on sub-topics21 September 2020

The following multiple choice questions are set out in 'quiz' format and are completely different questions to the questions in the Multiple choice tests for each topic. Student can check their own answers... more

SL Multiple choice 'quizzes' on sub-topics21 September 2020

The following multiple choice questions are set out in 'quiz' format and are completely different questions to the questions in the Multiple choice tests for each topic. Student can check their own answers... more

Update: Removal of the Options for May 2021 examination15 September 2020

UPDATED September 2020 :Many teachers in the Northern Hemisphere have already started or are about to start teaching the second year soon with their IB students either face-to-face or virtually. The IB... more

Ammonium nitrate & IB Chemistry9 September 2020

Ammonium nitrate has been very much in the news recently after 2750 tonnes of the salt which were being stored in the port area of Beirut caused a massive explosion on 4 August 2020 killing and injuring... more