Below you will find our collection of revision notes and video tutorials. For the best revision experience, use both the notes and the videos at the same time to help you follow along. All resources are updated for the latest OCR 9-1 Combined Science specification.
Revision Resources
- To be released early May
- To be released early May
Foundation Past Papers
Higher Past Papers
Video Tutorials
- Eukaryotic and prokaryotic cells
- Enzymes
- Respiration
- Photosynthesis
- Specialised cells
- The circulatory system
- The nervous system
- Human reproduction
- Asexual vs sexual reproduction and meiosis
- Natural selection
- Inheritance
- Preventing the spread of pathogens
- Preventing and treating communicable disease
- Immunity and vaccination
- Developing new drugs
- The particle model
- Separation techniques
- Chromatography
- The periodic table
- Ionic bonding
- Giant covalent structures
- Changing state
- Bulk properties of materials
- Chemical formulae
- Conservation of mass and balanced chemical equations
- Exothermic and endothermic reactions
- Reactions of acids
- Making salts
- Group 0
- Gas tests
- Factors affecting rates
- Extracting metals
- Recycling materials
- Forming the atmosphere
- Water for drinking
- Density
- Solids, liquids and gases
- Distance and displacement, speed and velocity
- Contact and non contact forces
- Forces, motion and work done
- Electric charge and current
- Circuit symbols
- Potential difference, current and resistance
- Magnets and magnetic fields
- The motor effect
- Transverse and longitudinal waves
- Electromagnetic waves 1
- Electromagnetic waves 2
- Radioactive decay
- Work done
- Energy resources
- Mains electricity
- Forces and braking