We know how important it is to feel prepared for your exams, which is why we’ve carefully analysed past trends and patterns to create our AQA GCSE Synergy 2025 Predicted Papers 📚✨
This year, we’re including video walkthroughs for FREE! 🎥🙌 Alongside the question papers and exam-style mark schemes, these walkthroughs will show you exactly how to interpret questions and structure your answers the way examiners expect—helping you maximise your marks! ✅
While our predictions are based on careful analysis, remember to revise everything to be fully prepared for your exam! 💪
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Paper 1 Life and Environmental Sciences | 2025 Predicted Topics & Revision Guide AQA Synergy | GCSE Science
Here are our 2025 predictions for AQA Synergy GCSE Combined Science Higher Paper 1! 🔬✨ These are key topics we think might come up, so make sure you’re confident with them! But remember—revise everything to be fully prepared! 💪📚
🦠 Cells (Including Differences Between Animal & Plant Cells, Organelles & Specialised Cells)
✅ Animal vs. Plant Cells:
Plant cells have a cell wall, chloroplasts, and a permanent vacuole (animal cells don’t!)
✅ Functions of Key Organelles:Nucleus – controls the cell, contains DNA
Mitochondria – where respiration happens, releases energy
Ribosomes – make proteins
Chloroplasts – contain chlorophyll, absorb light for photosynthesis
✅ Specialised Cells:Sperm cell – tail for movement, lots of mitochondria for energy
Nerve cell – long and branched for fast signal transmission
Root hair cell – large surface area for water absorption
❤️ Human Circulatory System
✅ Main Components:
Heart – pumps blood around the body
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Blood vessels:
Arteries – carry oxygenated blood away from the heart (thick walls)
Veins – carry deoxygenated blood back to the heart (valves prevent backflow)
Capillaries – thin walls for gas exchange
✅ Blood Components & Their Functions:
Red blood cells – carry oxygen using haemoglobin
White blood cells – fight infection
Platelets – help with blood clotting
Plasma – carries nutrients, hormones, and waste
🌡️ Solids, Liquids, & Gases
✅ Particle Model:
Solids – particles are close together, vibrate in place
Liquids – particles can move past each other, take the shape of the container
Gases – particles move quickly and freely
✅ Changes of State:Melting, freezing, evaporation, condensation, sublimation
✅ Density Formula:
Density = Mass ÷ Volume
🦠 Cancer & Non-Communicable Diseases
✅ Cancer:
Caused by uncontrolled cell growth and division
Benign tumours – don’t spread
Malignant tumours – can spread (cancerous)
✅ Risk Factors for Non-Communicable Diseases:Smoking – lung cancer, heart disease
Obesity – type 2 diabetes, heart disease
Alcohol – liver disease
🌈 The Electromagnetic Spectrum
✅ Order (Longest to Shortest Wavelength):
Radio → Microwave → Infrared → Visible → Ultraviolet → X-ray → Gamma
✅ Uses:
Radio waves – communication
Microwaves – cooking, satellite signals
Infrared – remote controls, thermal imaging
Ultraviolet (UV) – sunbeds, sterilising water
X-rays – medical imaging
Gamma rays – cancer treatment
🌍 Earth’s Atmosphere
✅ Composition:
78% nitrogen, 21% oxygen, 1% other gases (including CO₂ & argon)
✅ Changes Over Time:Early atmosphere: lots of CO₂, no oxygen
Plants photosynthesised → oxygen levels increased, CO₂ decreased
Carbon dioxide locked into fossil fuels, oceans, and rocks
🩸 Hormones in the Menstrual Cycle
✅ Key Hormones:
FSH (Follicle Stimulating Hormone): Matures the egg in the ovary
LH (Luteinising Hormone): Triggers ovulation (egg release)
Oestrogen & Progesterone: Control the cycle & maintain uterus lining
🛑 Contraception
✅ Hormonal Methods:
Pill, implant, injection – stop ovulation
IUD (coil) – prevents fertilisation
✅ Barrier Methods:Condoms, diaphragms – prevent sperm reaching the egg
✅ Surgical Methods:Sterilisation – permanent
⚛️ Structure of the Atom
✅ Key Parts of the Atom:
Protons (+) in the nucleus
Neutrons (0) in the nucleus
Electrons (-) in shells around the nucleus
✅ Atomic Number & Mass Number:Atomic number = Number of protons (same as electrons!)
Mass number = Protons + Neutrons
✅ Electron Shells:1st shell = 2 electrons
2nd shell = 8 electrons
3rd shell = 8 electrons
⚡ Reflex Arc
✅ A fast, automatic response to protect the body
✅ Pathway:
Stimulus → Receptor → Sensory neurone → Relay neurone → Motor neurone → Effector → Response
✅ Example: Pulling your hand away from something hot
💡 Final Advice & Masterclasses!
🔥 These topics are predicted, but remember—revise everything!
🔥 Practise past papers to get used to the types of questions that come up!
🔥 Need extra support? Join our Masterclasses! We’ve got revision boosters and live exam prep sessions the night before to help you feel exam-ready! 🎧📢
💙 Most importantly, look after yourself! Exam stress is real, but your grades do not define your worth. Take breaks, eat well, and believe in yourself—you’ve got this! 💪✨
👉 Get your predicted papers & masterclass spot here
Paper 2 Life and Environmental Sciences | 2025 Predicted Topics & Revision Guide AQA Synergy | GCSE Science
Here are our 2025 predictions for AQA Synergy GCSE Combined Science Higher Paper 2! 🔬✨ These are key topics we think might come up, so make sure you’re confident with them! But remember—revise everything to be fully prepared! 💪📚
🩸 Blood Cells
✅ Types of blood cells and their functions:
Red blood cells – carry oxygen using haemoglobin, no nucleus for more space
White blood cells – fight infection (some engulf pathogens, others produce antibodies)
Platelets – help blood clot to prevent bleeding
Plasma – carries nutrients, hormones, and waste (like CO₂ and urea)
🛑 Movement of Substances Into & Out of the Blood
✅ Three key processes:
Diffusion – movement of molecules from high to low concentration (e.g. oxygen & carbon dioxide in the lungs)
Osmosis – movement of water from high to low water concentration across a semi-permeable membrane
Active transport – movement against the concentration gradient (e.g. absorbing glucose in the small intestine, minerals in plant roots)
💧 Osmosis Practical
✅ Investigating osmosis in potato cells
✅ Steps:
Cut potato into equal-sized pieces
Place in different sugar solutions (pure water → highly concentrated)
Measure the change in mass to see if water entered or left the cells
✅ Results:Increase in mass = water moved in (hypotonic solution)
Decrease in mass = water moved out (hypertonic solution)
✅ Key controls: same temperature, time, volume of solution
🌱 Field Investigations Practical
✅ Quadrats & Transects – used to estimate population sizes and study distribution
✅ Quadrats:
Place randomly in a field, count organisms inside
Repeat & calculate an average for accurate results
✅ Transects:Lay out a tape measure in a line across a habitat
Place quadrats at intervals to see how population changes
⚡ Reaction Time
✅ How to measure reaction time:
Ruler drop test – partner drops a ruler, measure the time taken to catch it
Computer-based tests – more accurate, removes human error
✅ Factors affecting reaction time:Caffeine (reduces reaction time)
Tiredness & distractions (increase reaction time)
🩸 Blood Glucose
✅ Controlled by the pancreas using hormones:
Insulin – lowers blood sugar (tells liver to store glucose as glycogen)
Glucagon – raises blood sugar (tells liver to release glucose)
✅ Diabetes:Type 1 – body doesn’t produce insulin (treated with insulin injections)
Type 2 – linked to obesity, cells don’t respond to insulin (managed with diet & exercise)
☀️ Photosynthesis
✅ Word equation:
Carbon dioxide + Water → Glucose + Oxygen
✅ Where? – In the chloroplasts (contains chlorophyll to absorb light)
✅ Factors affecting photosynthesis:
Light intensity – more light = more photosynthesis (up to a point)
Carbon dioxide concentration – more CO₂ = more photosynthesis
Temperature – enzymes work best at optimum temperature but can denature if too hot
☢️ Radioactivity
✅ Three types of radiation:
Alpha (α) – big, slow, stopped by paper
Beta (β) – faster, stopped by aluminium
Gamma (γ) – very fast, stopped by lead
✅ Half-life: The time it takes for half of a radioactive substance to decay
✅ Uses:Medical tracers (gamma radiation)
Radiotherapy for cancer treatment
🧬 Inheritance
✅ Genes, Chromosomes & DNA:
DNA contains genes, which control traits
Alleles – different versions of a gene (dominant/recessive)
✅ Punnett Squares:Used to predict inheritance of traits
Dominant alleles need only one copy to be expressed
Recessive alleles need two copies to be expressed
🦠 Communicable Disease
✅ Caused by pathogens (bacteria, viruses, fungi, protists)
✅ Examples:
Bacteria – Salmonella (food poisoning)
Virus – Measles, HIV
Fungi – Athlete’s foot
Protists – Malaria
✅ How to prevent infection:Vaccination
Hand washing
Antibiotics (for bacterial infections)
Paper 3 Physical Sciences| 2025 Predicted Topics & Revision Guide AQA Synergy | GCSE Science
Here are our 2025 predictions for AQA Synergy GCSE Combined Science Higher Paper 3! 🔬✨ These are key topics we think might come up, so make sure you’re confident with them! But remember—revise everything to be fully prepared! 💪📚
⚡ Renewable & Non-Renewable Energy
✅ Renewable energy sources:
Wind, solar, hydroelectric, geothermal, biofuels
Never run out, better for the environment but can be unreliable (e.g. no wind = no wind power)
✅ Non-renewable energy sources:Coal, oil, natural gas, nuclear
Reliable, but create pollution (CO₂ → global warming) and will run out
✅ Nuclear power: No CO₂ emissions but produces radioactive waste
🔗 Bonding & Structure
✅ Types of bonding:
Ionic bonding – between metals & non-metals, transfers electrons (strong electrostatic forces)
Covalent bonding – between non-metals, shares electrons (e.g. water, oxygen)
Metallic bonding – between metals, sea of delocalised electrons (good conductors)
✅ Structure & Properties:Giant ionic – high melting points, only conduct when molten or dissolved
Simple covalent – low melting points, don’t conduct electricity
Giant covalent (e.g. diamond, graphite) – high melting points
🛢️ Crude Oil
✅ Mixture of hydrocarbons – mainly alkanes (CₙH₂ₙ₊₂)
✅ Fractional distillation – separates crude oil into fractions based on boiling points
✅ Smaller molecules = lower boiling points, more flammable
✅ Bigger molecules = higher boiling points, more viscous
🧪 Organic Chemistry
✅ Alkanes (CₙH₂ₙ₊₂) – single bonds, saturated
✅ Alkenes (CₙH₂ₙ) – double bonds, unsaturated
✅ Complete combustion: Hydrocarbon + Oxygen → Carbon dioxide + Water
✅ Cracking – breaking long hydrocarbons into smaller, more useful ones
🚗 Stopping Distances
✅ Stopping distance = Thinking distance + Braking distance
✅ Factors affecting thinking distance:
Speed
Tiredness, alcohol, drugs
✅ Factors affecting braking distance:Speed
Road conditions (ice, rain)
Car condition (worn brakes, tyres)
🏁 Terminal Velocity
✅ What happens when a falling object reaches terminal velocity?
At first: Weight > Air resistance → Object accelerates
As speed increases: Air resistance increases
At terminal velocity: Air resistance = Weight, so object falls at a constant speed
🧪 Acids & Alkalis
✅ pH Scale:
Acid = pH 0-6 (e.g. HCl)
Neutral = pH 7 (pure water)
Alkali = pH 8-14 (e.g. NaOH)
✅ Acid + Base → Salt + Water
✅ Indicators:Litmus: Red in acid, blue in alkali
Universal indicator: Shows full pH range
⚡ Reactivity Series
✅ Order of reactivity (most to least):
Potassium > Sodium > Calcium > Magnesium > Aluminium > Zinc > Iron > Copper > Gold
✅ Reactions with acids:
More reactive metals fizz more violently
Magnesium + HCl → Magnesium chloride + Hydrogen
✅ Displacement reactions:A more reactive metal displaces a less reactive one from its compound
🌍 Life Cycle Assessments (LCAs)
✅ Used to assess the environmental impact of a product at different stages:
Raw material extraction – mining, drilling, energy use
Manufacturing & processing – pollution from factories
Usage – how much energy/waste it produces in use
Disposal – landfill, recycling, decomposition
✅ Sustainability considerations – can materials be reused or recycled?
📊 Velocity-Time Graphs
✅ What the gradient means:
Steeper gradient = Greater acceleration
Flat line = Constant speed
Line sloping down = Deceleration
✅ Calculating acceleration:
Acceleration = (Final velocity – Initial velocity) ÷ Time
✅ Calculating distance travelled:Area under the graph = distance
💎 Carbon Allotropes
✅ Different forms of carbon with different properties:
Diamond: Hard, giant covalent, doesn’t conduct electricity
Graphite: Layers slide, conducts electricity (delocalised electrons)
Graphene: One layer of graphite, super strong, excellent conductor
Fullerenes: Hollow molecules (e.g. nanotubes) used in drug delivery
Paper 4 Physical Sciences| 2025 Predicted Topics & Revision Guide AQA Synergy | GCSE Science
Here are our 2025 predictions for AQA Synergy GCSE Combined Science Higher Paper 4! 🔬✨ These topics are based on past trends, but remember—revise everything to be fully prepared! 💪📚
🔥 Combustion
✅ Complete Combustion:
Fuel + Oxygen → Carbon dioxide + Water
Releases energy, produces CO₂ (contributes to global warming)
✅ Incomplete Combustion:Fuel + Limited Oxygen → Carbon monoxide + Soot (carbon) + Water
Carbon monoxide (CO) is toxic – reduces oxygen in the blood
✅ Fossil Fuels & Pollution:Burning fuels releases sulfur dioxide (acid rain) & CO₂ (climate change)
📈 Energy Profiles
✅ Exothermic vs. Endothermic:
Exothermic: Releases heat (e.g. combustion)
Endothermic: Absorbs heat (e.g. photosynthesis)
✅ Energy Profile Diagrams:Activation energy = Energy needed to start the reaction
Catalysts lower activation energy → speeds up reaction
🔋 Potential Energy
✅ Stored energy due to position or condition
✅ Types of potential energy:
Gravitational Potential Energy (GPE): Energy stored due to height
Elastic Potential Energy: Stored in stretched or compressed objects
✅ GPE Formula:
GPE = Mass × Gravity × Height
🌀 Hooke’s Law
✅ Force is proportional to extension (until elastic limit is reached)
✅ Formula:
Force (N) = Spring constant (N/m) × Extension (m)
✅ Practical:
Add weights to a spring and measure extension
Plot force vs. extension graph (should be a straight line)
⚡ Rates of Reactions & Catalysts
✅ Factors Affecting Rate:
Temperature – Higher = Faster (more collisions, more energy)
Concentration – More particles = More collisions
Surface Area – Smaller pieces react faster
Catalysts – Speed up reactions without being used up
✅ How Catalysts Work:Lower activation energy
Provide an alternative reaction pathway
⚙️ Electrolysis of Aluminium
✅ Why is electrolysis needed?
Aluminium is very reactive → cannot be extracted by reduction
✅ Process:Aluminium oxide (Al₂O₃) is melted in cryolite to lower melting point
At cathode (-): Al³⁺ gains electrons → Aluminium metal forms
At anode (+): O²⁻ loses electrons → Oxygen gas forms
✅ Problem: Oxygen reacts with carbon anode → produces CO₂, so anodes wear out
🔌 Circuits
✅ Key Circuit Components:
Battery/Cell – Provides voltage
Resistor – Limits current
Variable resistor – Changes resistance
✅ Ohm’s Law:
Voltage (V) = Current (A) × Resistance (Ω)
✅ Series vs. Parallel Circuits:Series: Same current, voltage shared
Parallel: Same voltage, current splits
🧲 Electromagnets
✅ How to Make an Electromagnet Stronger:
More coils
Increase current
Use an iron core
✅ Uses of Electromagnets:Electric bells
MRI scanners
Scrap yard magnets
⚖️ Le Chatelier’s Principle
✅ If a system in equilibrium is disturbed, it shifts to oppose the change
✅ Changing Conditions:
Increase temperature → Shifts to endothermic side
Increase pressure → Shifts to side with fewer gas molecules
Increase concentration of reactants → More products form
💙 Your Mental Health Matters 💙
Exams are important, but they do not define you. Your hard work, kindness, and resilience mean so much more than any grade ever could. 🌟
It’s okay to feel stressed, but remember to:
🧘♂️ Take breaks – your brain needs rest to work at its best!
💤 Get enough sleep – a well-rested mind learns better.
🍏 Eat well & stay hydrated – fuel your body and brain.
💬 Talk to someone – you’re never alone, and support is always there.
Believe in yourself—you are capable, strong, and more than enough! 💪✨ No matter what happens, you are valued and worthy just as you are. 💖