Tag Archives: Topic 1

Systems and Models in Science

As we start the new school year, it’s time to revisit and review some of the major ideas from previous lessons. Today’s post recaps the systems approach to science – the examination of how parts of a whole work together to create interdependent linkages and something called ’emergent properties’, in which the whole is greater than the sum of its parts.

Follow this link to the Topic 1 page of another school’s DP ESS class. I highly recommend this site because it is extremely thorough and well-resourced.



ESS Test – Mark Scheme Published

Below is the recent test on ESS Topics 1, 7, and 2.1 – 2.3. The original test and the mark scheme are included as a single document and consist of real IB questions from past papers.

The red ovals highlight the key words in the questions, and the blue rectangles identify the parts of the responses which earn marks from the examiners. Please use this test as a study guide for future tests, such as this year’s final exam and next year’s mock exam.