OCR GCSE Combined Science A Gateway revision notes
Practical skills Revision Notes
Study Practical skills with curriculum-aligned Revision Notes resources, practice links, and exam-focused support.
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Practical skills
Revision notes
Culture Dish Reverse: practical apparatus
What Culture Dish Reverse Is Used For
Culture Dish Reverse is practical apparatus for handling cultures during microbiology practical work. In GCSE or introductory practical science, the annotated diagram helps connect the apparatus to the method, measurement, or observation being tested.
How To Use It In An Exam Answer
Use the marker labels to name the apparatus first, then say why it is suitable. A strong answer links culture dish reverse to handling cultures during microbiology practical work, rather than only saying that it is used in a lab.
Syllabus Link
Primary private mapping: OCR GCSE combined-science-a-gateway J250, Practical skills.
Common Trap
Do not describe apparatus by appearance only. Marks usually come from explaining its function in the practical method.
Dimroth Condenser: practical apparatus
What Dimroth Condenser Is Used For
Dimroth Condenser is practical apparatus for heating, cooling, or collecting substances during distillation. In A-level Chemistry, the annotated diagram helps connect the apparatus to the method, measurement, or observation being tested.
How To Use It In An Exam Answer
Use the marker labels to name the apparatus first, then say why it is suitable. A strong answer links dimroth condenser to heating, cooling, or collecting substances during distillation, rather than only saying that it is used in a lab.
Syllabus Link
Primary private mapping: OCR GCSE combined-science-a-gateway J250, Practical skills.
Common Trap
Do not describe apparatus by appearance only. Marks usually come from explaining its function in the practical method.
Dimroth Condenser: practical apparatus
What Dimroth Condenser Is Used For
Dimroth Condenser is practical apparatus for heating, cooling, or collecting substances during distillation. In A-level Chemistry, the annotated diagram helps connect the apparatus to the method, measurement, or observation being tested.
How To Use It In An Exam Answer
Use the marker labels to name the apparatus first, then say why it is suitable. A strong answer links dimroth condenser to heating, cooling, or collecting substances during distillation, rather than only saying that it is used in a lab.
Syllabus Link
Primary private mapping: OCR GCSE combined-science-a-gateway J250, Practical skills.
Common Trap
Do not describe apparatus by appearance only. Marks usually come from explaining its function in the practical method.
Funnel: practical apparatus
What Funnel Is Used For
Funnel is practical apparatus for supporting filtration and separation of insoluble solids. In GCSE Chemistry, the annotated diagram helps connect the apparatus to the method, measurement, or observation being tested.
How To Use It In An Exam Answer
Use the marker labels to name the apparatus first, then say why it is suitable. A strong answer links funnel to supporting filtration and separation of insoluble solids, rather than only saying that it is used in a lab.
Syllabus Link
Primary private mapping: OCR GCSE combined-science-a-gateway J250, Practical skills.
Common Trap
Do not describe apparatus by appearance only. Marks usually come from explaining its function in the practical method.
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