Edexcel GCSE Biology grade boundaries 2025: every grade
GCSE Biology Higher
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Edexcel GCSE Biology (1BI0) boundaries, June 2025
From Pearson's June 2025 GCSE (9-1) document. Each is the lowest total out of 200 that earns the grade, across both papers.
| Higher tier, out of 200 | 9 | 8 | 7 | 6 | 5 | 4 | 3 |
|---|---|---|---|---|---|---|---|
| Higher, June 2025 | 167 | 155 | 144 | 124 | 104 | 84 | 74 |
| Foundation tier, out of 200 | 5 | 4 | 3 | 2 | 1 |
|---|---|---|---|---|---|
| Foundation, June 2025 | 130 | 111 | 81 | 51 | 22 |
Our Edexcel GCSE Biology guide covers the course, and Edexcel GCSE grade boundaries 2025 has the other subjects.
The two papers behind the total
| Paper | Length | Marks | Topics |
|---|---|---|---|
| Paper 1 (1BI0/1F or 1H) | 1 hour 45 minutes | 100 | 1 Key concepts; 2 Cells and control; 3 Genetics; 4 Natural selection and genetic modification; 5 Health, disease and the development of medicines |
| Paper 2 (1BI0/2F or 2H) | 1 hour 45 minutes | 100 | 1 Key concepts; 6 Plant structures and their functions; 7 Animal coordination, control and homeostasis; 8 Exchange and transport in animals; 9 Ecosystems and material cycles |
Biology is split into how organisms are built and inherited (Paper 1) and how they function and live together (Paper 2). Because topic 1 sits in both, cell structure and key terms are tested all year round.
Foundation did not move, Higher did
Compare with June 2024:
| Grade | Higher 2024 | Higher 2025 | Change | Foundation 2024 | Foundation 2025 | Change |
|---|---|---|---|---|---|---|
| 9 | 166 | 167 | +1 | n/a | n/a | n/a |
| 8 | 152 | 155 | +3 | n/a | n/a | n/a |
| 7 | 139 | 144 | +5 | n/a | n/a | n/a |
| 6 | 116 | 124 | +8 | n/a | n/a | n/a |
| 5 | 93 | 104 | +11 | 130 | 130 | 0 |
| 4 | 71 | 84 | +13 | 111 | 111 | 0 |
| 3 | 60 | 74 | +14 | 81 | 81 | 0 |
| 2 | n/a | n/a | n/a | 51 | 51 | 0 |
| 1 | n/a | n/a | n/a | 22 | 22 | 0 |
Every Foundation line is the same in 2024 and 2025: grade 5 at 130, grade 4 at 111, grade 3 at 81, grade 2 at 51 and grade 1 at 22. The Higher tier rose by 1 to 14 marks, and grade 4 jumped from 71 to 84. A Higher student working from the 2024 grade 4 line of 71 would have been 13 marks off in 2025.
Two examples
- Higher. 52 on Paper 1 and 58 on Paper 2 is 110 out of 200. That is above 104 (grade 5) and below 124 (grade 6), a grade 5, 14 marks short of a 6.
- Foundation. 115 out of 200 is above 111 (grade 4) and below 130 (grade 5), a grade 4, 15 marks short of a 5.
What the Biology numbers say
- Higher grade 4 was 42% and grade 7 was 72%.
- Higher grade 9 was 84%, the highest top-grade share of the Edexcel sciences in 2025.
- Pace: each paper is 105 minutes for 100 marks, a little over a minute a mark, so a three-mark question deserves about three minutes.
Test yourself on today's Biology Higher or Foundation paper. It is not an Edexcel paper, so use the share and not the raw mark.
Common questions
What were the Edexcel GCSE Biology grade boundaries in 2025?
What mark is a grade 4 in Edexcel GCSE Biology 2025?
What mark is a grade 9 in Edexcel GCSE Biology 2025?
Did the Foundation Biology boundaries change in 2025?
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UK · GCSEEdexcel GCSE grade boundaries 2025: marks for every gradePearson's official June 2025 Edexcel GCSE boundaries for Maths, the sciences and Computer Science, with 2024 alongside to show what changed.