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IB Nature of Science Exam Statistics

Last assessed: May 2024

IB Nature of Science is offered at SL only. In May 2024, 114 students took it, with a mean grade of 4.3. The grade 7 rate was 2.6%.

Compared with May 2023, the mean grade was down from 4.40.

The bulletins after May 2024 have no Nature of Science results.

Standard Level (SL), May 2024

Students
114
May 2023: 157
Mean grade
4.3
May 2023: 4.40
Grade 7 rate
2.6%
Grade 6 or 7 rate
14.0%

Average Nature of Science grade over time

The mean grade at SL in every May session since May 2022.

Mean grade in IB Nature of Science at SL, May sessions.
IB Nature of Science mean grade in May sessions, newest first
SessionSL
May 20244.3
May 20234.40
May 20224.91
  • The IB states that these results combine examination and non-examination assessment routes, which were used during the COVID-19 disruption. (May 2022)

Nature of Science grade 7 rate over time

The share of students awarded a 7 at SL in every May session since May 2022.

Share of IB Nature of Science students awarded a 7 at SL, May sessions.
IB Nature of Science grade 7 rate in May sessions, newest first
SessionSL
May 20242.6%
May 20234.5%
May 202216.5%
  • These bulletins print no N (no grade) column, so grades 1-7 are shares of the students who received a grade, and N is shown as —. (May 2022, May 2023)
  • These bulletins include N (no grade) in the total, so grades 1-7 add up to less than 100% and are measured on a slightly different basis from sessions without an N column. (May 2024)
  • The IB states that these results combine examination and non-examination assessment routes, which were used during the COVID-19 disruption. (May 2022)
  • Grade cells the bulletin leaves blank are shown as 0.0%. (May 2022, May 2023, May 2024)

Nature of Science grade distribution in May 2024

The share of students at each grade at SL.

Share of IB Nature of Science students at each grade at SL, May 2024.
IB Nature of Science grade distribution, May 2024
Level1234567N6 or 7Mean gradeStudents
SL0.014.012.322.836.811.42.60.014.04.3114

Percentage of students at each grade, as published. The grade 6 or 7 rate is the two shares added.

  • Grade cells the bulletin leaves blank are shown as 0.0%. (May 2024)

Historical Nature of Science results

Results at SL for every session since May 2022, newest first, with November sessions alongside May. The chart shows how many students took Nature of Science in each May session.

Students taking IB Nature of Science at SL, May sessions.
IB Nature of Science results by session, newest first
SessionStudentsMean gradeGrade 7 rateGrade 6 or 7 rate
May 20241144.32.6%14.0%
May 20231574.404.5%19.9%
May 20221424.9116.5%28.7%

Grade 7 rate: the share of students awarded a 7, as published. Grade 6 or 7 rate: the published shares for grades 6 and 7 added.

  • These bulletins print no N (no grade) column, so grades 1-7 are shares of the students who received a grade, and N is shown as —. (May 2022, May 2023)
  • These bulletins include N (no grade) in the total, so grades 1-7 add up to less than 100% and are measured on a slightly different basis from sessions without an N column. (May 2024)
  • The IB states that these results combine examination and non-examination assessment routes, which were used during the COVID-19 disruption. (May 2022)
  • Grade cells the bulletin leaves blank are shown as 0.0%. (May 2022, May 2023, May 2024)

Compare with other subjects

Source and methodology

These statistics are from the International Baccalaureate's statistical bulletins. The latest data shown is from the May 2024 assessment session.

About this data

  • May and November are separate assessment sessions. November is much smaller and mostly taken by schools in the southern hemisphere, so its figures aren't directly comparable with May's.
  • Older bulletins call the people sitting the exams “candidates” and newer ones “students”. This site says “students” throughout.
  • “<10” means the IB didn't publish the exact number because fewer than 10 students took the subject. These figures are never estimated or counted as zero.
  • The grade 7 rate is the share of students the bulletin reports at grade 7. The grade 6 or 7 rate is calculated by IBonomics by adding the published shares for grades 6 and 7. Every other figure is as published.
  • From May 2024 the bulletins include students who received no grade (N) in each subject's percentages, so grades 1 to 7 add up to slightly less than 100%. Earlier bulletins give percentages of graded students only.
  • Bulletins up to May 2023 print figures to two decimal places and later ones to one. Each figure is shown as printed, and changes are compared at the lower precision.

IBonomics is not affiliated with or endorsed by the International Baccalaureate.