Assessment - GCSE Chemistry
Assessment Requirements
The Pearson Edexcel International GCSE in Chemistry is a linear qualification, meaning that all examinations are taken at the end of the course. The total number of marks for the qualification is 180, obtained by adding the scores of Paper 1C and Paper 2C. Marks are not scaled, and grades range from 9 to 1 (with 9 being the highest grade).
| Paper number | Level | Assessment information | Marks |
|---|---|---|---|
| Paper 1C | 1/2 | Assessed through a 2-hour written examination set and marked by Pearson. The paper is weighted at 61.1% of the qualification. A mixture of different question styles, including multiple-choice questions, short-answer questions, calculations and extended open-response questions. Assesses the content that is not in bold and does not have a 'C' reference. Questions may come from any topic area across the specification. | 110 |
| Paper 2C | 1/2 | Assessed through a 1-hour and 15-minute written examination set and marked by Pearson. The paper is weighted at 38.9% of the qualification. A mixture of different question styles, including multiple-choice questions, short-answer questions, calculations and extended open-response questions. Assesses all the content, including content that is in bold and has a 'C' reference. Questions may come from any topic area across the specification. Bold statements cover some sub-topics in greater depth. | 70 |
Experimental Skills
The best way to develop experimental skills is to embed practical investigations in teaching or theory. The development of knowledge and experimental skills can then happen together, leading to secure acquisition of both knowledge and skills.
Our practical investigations are embedded within the chemistry content as specification points in italics. The skills developed through these and other practicals will be assessed through written examinations.
In the assessment of experimental skills, students may be tested on their ability to:
- solve problems set in a practical context
- apply scientific knowledge and understanding in questions with a practical context
- devise and plan investigations, using scientific knowledge and understanding when selecting appropriate techniques
- demonstrate or describe appropriate experimental and investigative methods, including safe and skilful practical techniques
- make observations and measurements with appropriate precision, record these methodically and present them in appropriate ways
- identify independent, dependent and control variables
- use scientific knowledge and understanding to analyse and interpret data to draw conclusions from experimental activities that are consistent with the evidence
- communicate the findings from experimental activities, using appropriate technical language, relevant calculations and graphs
- assess the reliability of an experimental activity
- evaluate data and methods taking into account factors that affect accuracy and validity
Assessment Objectives & Weightings
The assessment objectives (AOs) and their weightings in the Pearson Edexcel International GCSE in Chemistry are:
| Objective | Description | % in International GCSE |
|---|---|---|
| AO1 | Knowledge and understanding of chemistry | 38–42% |
| AO2 | Application of knowledge and understanding, analysis and evaluation of chemistry | 38–42% |
| AO3 | Experimental skills, analysis and evaluation of data and methods in chemistry | 19–21% |
| Total | Total weight | 100% |
AO Weightings per Paper
The relationship of the assessment objectives to the exam components is outlined below:
| Unit number | AO1 | AO2 | AO3 |
|---|---|---|---|
| Chemistry Paper 1 | 23.2%–25.7% | 23.2%–25.7% | 11.6%–12.8% |
| Chemistry Paper 2 | 14.8%–16.3% | 14.8%–16.3% | 7.4%–8.2% |
| Total for International GCSE | 38%–42% | 38%–42% | 19%–21% |
Calculators & Materials
Calculators: Students will be expected to have access to a suitable electronic calculator for all examination papers. Calculators that allow for the retrieval of text or formulae, or QWERTY keyboards will not be allowed for use in examinations.
Sample Assessment Materials: Sample papers and mark schemes can be found in the Pearson Edexcel International GCSE in Chemistry Sample Assessment Materials (SAMs) document.