GCSE Combined Science A (Gateway) (OCR)

63 free revision lessons in 9 units. Open the course or go straight to a lesson.

Biology Paper 1

Cell level systems, scaling up, organism level systems

1. Cell Structures and Microscopy
2. Cell Chemistry and Enzymes
3. Respiration
4. Photosynthesis
5. Supplying the Cell and Challenges of Size
6. The Nervous System
7. The Endocrine System
8. Homeostasis and Reproduction

Biology Paper 2

Community level systems, genes, inheritance and selection

1. Ecosystems
2. Cycling Materials and Decomposition
3. Inheritance
4. Natural Selection and Evolution
5. Monitoring and Maintaining the Environment
6. Feeding the Human Race
7. Health, Disease and the Immune System
8. Non-Communicable Disease and Lifestyle

Chemistry Paper 1

Particles, elements, compounds and mixtures

1. The Particle Model
2. Atomic Structure
3. Purity and Separating Mixtures
4. Bonding
5. Properties of Materials
6. Chemical Reactions and Equations
7. Energetics
8. Types of Chemical Reactions and Electrolysis

Chemistry Paper 2

Chemical reactions, predicting and identifying reactions, monitoring

1. Predicting Chemical Reactions — Reactivity
2. Predicting Chemical Reactions — Groups and Trends
3. Identifying Substances
4. Rates of Reaction
5. Equilibria
6. Improving Processes and Products
7. Earth's Atmosphere and Climate
8. Earth's Resources and Sustainability

Physics Paper 1

Matter, forces and energy

1. The Particle Model and Density
2. Changes of State and Internal Energy
3. Motion
4. Newton's Laws
5. Forces in Action
6. Static Charge and Simple Circuits
7. Domestic Electricity and Electrical Power
8. Magnets and Magnetic Fields

Physics Paper 2

Waves, electricity, magnetism and space

1. Wave Behaviour
2. The Electromagnetic Spectrum
3. Radioactivity
4. Uses and Dangers of Radiation
5. Work Done, Energy and Power
6. Energy Resources and Sustainability
7. Physics on the Move
8. Global Challenges in Physics

Physics Calculations

Drill every recall equation for the Physics papers

1. Energy: KE, GPE and Power
2. Efficiency and Energy Resources
3. Circuit Calculations
4. Electrical Power and Energy Bills
5. Density, SHC and Latent Heat
6. Forces, Work Done and Elasticity
7. Speed, Acceleration and Graphs
8. Newton's Laws, Momentum and Waves

Chemistry Calculations

Master moles, Mr, bond energies and rates

1. Relative Formula Mass and Moles
2. Balancing Equations and Reacting Masses
3. Bond Energy Calculations
4. Rates from Graphs and Concentrations

Biology Data Skills

Magnification, genetics and sampling calculations

1. Magnification and Unit Conversions
2. Punnett Squares and Genetic Probability
3. Sampling, Mean and Percentage Change

How to revise Combined Science A (Gateway)

• Retrieval Practice
• Spaced Repetition
• Active Recall with Flashcards
• Mind Maps and Diagrams
• Equation Practice and Calculations
• Required Practicals Revision
• Timed Practice Questions

All subjects