Typical offers require
A Level: A*A*A
IB: 40-42 points, with 776 at Higher Level
For other qualifications, see our main Entrance requirements pages.
Course requirements
Please note that in the following 'science/mathematics subjects' refers to Biology, Chemistry, Physics, Mathematics* and Further Mathematics. It does not include Psychology.
- Required by all Colleges: A Levels/IB Higher Levels in at least two science/mathematics, see also subject requirements for Year 1 options
- Required by some Colleges: AS or A Level/IB Standard or Higher Level in a third science/mathematics subject and/or particular subjects
See 
Natural Sciences (Biological): Subject Requirements and Typical Offer by College and Natural Sciences (Physical): Subject Requirements and Typical Offer by College for College-specific requirements/preferences. All undergraduate admissions decisions are the responsibility of the Cambridge Colleges. Please contact the relevant College admissions office if you have any queries about College-specific requirements.
See also Entrance requirements and The Subject Matters for additional advice about general requirements for entry, qualifications and offers.
A Levels
Most students have at least three science/mathematics A Levels. The minimum requirement is two, but this will restrict your choice of Part IA options. In these circumstances, you'll normally be expected to achieve A* in both of the science/mathematics subjects and encouraged to take an additional science/mathematics AS Level. The more useful combinations are:
- A Level Biology, A Level Chemistry, and AS Level Mathematics or Physics
- A Level Chemistry, A Level Mathematics, and AS Level Biology or Physics
- A Level Physics, A Level Mathematics and AS Level Further Mathematics
If you don’t have A Level Mathematics, you’re required to complete some preparatory work before the start of the course and must take Mathematical Biology as your mathematics subject in Year 1.
International Baccalaureate
The advice above about A Level subject combinations also applies to the IB. For these purposes:
- Standard Level subjects will satisfy AS Level subject requirements
- Higher Level subjects will satisfy A Level subject requirements
Please note, IB applicants starting the new IB Mathematics syllabus are expected to take IB Higher Level 'Analysis and Approaches' for any course where Mathematics is a requirement. If this option is not available at your school, please contact the College that you wish to apply to directly for further advice and guidance.
Other examination systems
We expect applicants taking other recognised qualifications to have a level of understanding in science and mathematics roughly equivalent to those applying with A Levels.
Refer to our main Entrance requirements pages and consult a College Admissions Tutor for further advice.
Admission assessment
For 2021 entry, applicants for Natural Sciences are required to take a pre-interview written assessment on 4 November 2020, at an authorised centre local to them (for a lot of applicants, this will be their school/college). You need to be registered by 15 October 2020 to take the assessment, and your assessment centre must do this for you. Please note that open centres may set an earlier deadline for accepting entries, and it is your responsibility to check if this applies at your centre. See admission assessments for full details.
Assessment format
The format for the 2020 assessment will be as follows:
- Section 1: Multiple choice questions in mathematics plus one science (Biology, Chemistry or Physics) (60 minutes)
- Section 2: Extended multiple choice questions in Biology, Chemistry or Physics (60 minutes)
An updated specification document for the 2020 assesssment will be available here by the end of June 2020. Please see below for the 2019 assessment specification, the 2019 specimen papers, and past papers.
Natural Sciences Admissions Assessment Specification 2019
Please note that your performance in the pre-interview assessment will not be considered in isolation, but will be taken into account alongside the other elements of your application.
In addition to the pre-interview assessment, applicants to the following Colleges are required to take a College-set written assessment at interview (see individual College websites for details):
Mature students (aged 21 or over) applying to one of the mature Colleges aren’t required to take the pre-interview assessment, and will instead sit an at-interview assessment. See the written assessments page for more details.
Specimen and past papers
A specimen paper has been produced to allow you to sample the written assessment format and practice under timed conditions. It is not expected that you will answer every question correctly; the written assessment is designed to be challenging. Even some strong candidates may not complete the paper in the time allowed; it is designed to distinguish across our field of high-calibre applicants.
Experience with similar assessments and from trials indicates that, on average, typical applicants to the most highly selective undergraduate courses (who are by definition academically very able) will gain approximately half of the available marks. The best applicants will score more highly, but only relatively few are expected to gain more than 80 per cent of the available marks.
Written assessments help admissions tutors to assess whether candidates have the skills, aptitudes and any required subject knowledge and understanding required to study the relevant course at Cambridge. They are only one of the elements used in the admissions process. Others include a candidate’s academic record and forecast grades in school-leaving examinations; UCAS application form; examples of recent written work submitted to the College to which they are applying; and performance at interview, if invited to attend.
Specimen papers:
Natural Sciences Specimen Paper - Section 1: Question Paper
Natural Sciences Specimen Paper - Section 1: Answer Sheet
Natural Sciences Specimen Paper - Section 1: Answer Key
Natural Sciences Specimen Paper - Section 1: Explained Answers
Natural Sciences Specimen Paper - Section 2: Question Paper (Answers are not available for this specimen paper. The questions in Section 2 were produced to demonstrate the type of content that could be included in the assessment. Students should refer to the past paper below to see how answers were marked in 2016.
Past papers:
Natural Sciences Admissions Assessment 2018 (papers combined)
Natural Sciences 2017 - Section 1: Question Paper
Natural Sciences 2017 - Section 1: Answer Sheet
Natural Sciences 2017 - Section 1: Answer Key
Natural Sciences 2017 - Section 2: Question Paper
Natural Sciences 2017 - Section 2: Explained Answers
Natural Sciences 2016 - Section 1: Question Paper
Natural Sciences 2016 - Section 1: Answer Sheet
Natural Sciences 2016 - Section 1: Answer Key
Natural Sciences 2016 - Section 2: Question Paper
Natural Sciences 2016 - Section 2: Explained Answers
Submitted work
Applicants are not typically asked to submit examples of written work. Some may be asked by their College to do some reading in advance of their interview, but if this is required the College will provide full details in the letter inviting the student to interview.
For further information about studying Natural Sciences at the University of Cambridge see the Natural Sciences Tripos website.
