Oundle School — 13+ Chemistry Entrance Exam 2025
Oundle School set this 13+ Chemistry paper in 2025. Hearthprep hosts it as an interactive past paper — 11 questions worth 24 marks in 24 minutes, each marked the moment the paper is submitted and backed by a step-by-step worked solution. Most 13+ entrance exams are sat between November and January of the year of entry.
Real 13+ Chemistry paper from Oundle School (2025). 11 questions, 24 marks. Answer interactively with worked solutions. Covers Atomic Structure & the Periodic Table, Chemical Reactions & Equations, Separation & Mixtures, States of Matter & Particles.
This is the school's own past paper, reproduced here with worked solutions by Hearthprep. Most 13+ entrance exams are sat between November and January of the year of entry, so a timed attempt at this paper is worth doing early enough to leave room for the topics it exposes. Work through it on screen with instant marking, or print the PDF and sit it under exam conditions.
- School
- Oundle School
- Entry level
- 13+
- Subject
- Chemistry
- Year
- 2025
- Questions
- 11
- Marks
- 24
- Time
- 24 minutes
- Exam board
- ISEB
Topics in this paper
- Atomic Structure & the Periodic Table
- Chemical Reactions & Equations
- Separation & Mixtures
- States of Matter & Particles
Questions in this paper (3 of 11)
- Question 1multiple choice · 1 mark
Which of the following is an example of a mixture?
- Question 2multiple choice · 1 mark
Iron(III) oxide is reduced by carbon monoxide to produce iron and carbon dioxide. What is the balanced equation for this reaction?
- Question 3multiple choice · 1 mark
Which diagram represents a chemical change? [Four particle diagrams, each showing a 'before' picture, an arrow, and an 'after' picture. Light circles and dark circles stand for two different types of atom.]
8 further questions in this paper open with any paid plan, along with marking and the worked solutions. See plans.
Frequently asked questions
What is in the Oundle School — 13+ Chemistry Entrance Exam 2025?
11 questions worth 24 marks in total, written for 24 minutes. It covers Atomic Structure & the Periodic Table, Chemical Reactions & Equations, Separation & Mixtures, States of Matter & Particles. Oundle School set it as a 13+ Chemistry paper.
How long is the Oundle School 13+ Chemistry paper?
This paper is timed at 24 minutes for 24 marks — roughly 60 seconds a mark. Hearthprep runs the same clock on screen, so your child sees how far through the time they are as they answer.
Can my child answer this paper online?
Yes. Every question on this page can be answered in the browser and is marked the moment the paper is submitted — multiple choice, short answers and written responses alike. Answers are matched leniently, so a correct value written a different way (units, fractions, word numbers) still scores.
Are worked solutions included?
Every question has a step-by-step worked solution and an AI tutor that will talk through it after the paper is submitted. The first 3 questions of this paper are free to try; the remaining 8 and the marking come with a paid plan.
Where does this Oundle School paper come from?
This is the school's own past paper, reproduced here with worked solutions by Hearthprep. Use it to time a full mock attempt, then drill whichever topics your child drops marks on.
Loading the interactive paper…