Your journey to excellence in
Combined Science
By Revision Genie
Let's master Combined Science together!Development of Scientific Methods
Models in Science
Scientific Evidence and Ethics
Applications and Implications
Risk and Risk Assessment
Peer Review and Communication
Hypotheses and Predictions
Experimental Design and Variables
Apparatus and Technique Selection
Measurement and Data Recording
Sampling Techniques
Evaluating Methods
Data Presentation
Data Transformation
Maths and Statistical Analysis
Uncertainty and Error
Conclusions and Explanations
Accuracy, Precision, Repeatability, Reproducibility
Scientific Vocabulary and Units
Significant Figures and Unit Conversions
Eukaryotes and Prokaryotes
Animal and Plant Cells
Sub-Cellular Structures
Cell Specialisation
Cell Differentiation
Light vs Electron Microscopy
Magnification Calculations
Chromosomes, DNA and Genes
Mitosis and the Cell Cycle
Stem Cells and Meristems
Therapeutic Cloning
Stem Cell Risks and Ethics
Diffusion
Osmosis
Active Transport
Surface Area to Volume Ratio
Exchange Surfaces
Cells, Tissues, Organs and Systems
Digestive System Organs
Digestive Enzymes
Enzyme Action and Active Sites
Amylase, Protease and Lipase
Bile and Emulsification
Heart Structure and Blood Flow
Double Circulatory System
Blood Vessels: Arteries, Veins, Capillaries
Blood Components
Coronary Heart Disease
Stents, Statins and Valves
Heart and Lung Transplants
Health and Disease Interactions
Lifestyle and Non-Communicable Disease
Risk Factors and Correlation
Cancer: Benign vs Malignant Tumours
Plant Tissues in Leaves
Xylem and Phloem
Transpiration
Translocation
Stomata and Guard Cells
Factors Affecting Transpiration
Pathogens and Transmission
Communicable Disease Control
Viral Diseases: Measles, HIV, TMV
Bacterial Diseases: Salmonella, Gonorrhoea
Fungal Diseases: Rose Black Spot
Protist Diseases: Malaria
Body Barriers and Defences
White Blood Cells and Phagocytosis
Antibodies and Antitoxins
Vaccination and Herd Immunity
Antibiotics and Resistance
Painkillers and Symptom Relief
Drug Discovery and Development
Preclinical and Clinical Trials
Placebos and Double-Blind Trials
Photosynthesis Equation
Photosynthesis as Endothermic
Limiting Factors
Rate of Photosynthesis Graphs
Uses of Glucose in Plants
Aerobic Respiration Equation
Anaerobic Respiration in Muscles
Fermentation in Yeast
Exercise Responses
Oxygen Debt and Lactic Acid
Metabolism Overview
Protein Breakdown to Urea
Homeostasis and Control Systems
Receptors, Coordination Centres, Effectors
Nervous System Organisation
Reflex Arc Components
Synapses
Reaction Time
Brain Structure and Function
The Eye and Vision
Thermoregulation
Blood Glucose Control
Diabetes (Type 1 and Type 2)
Hormones and Endocrine System
Adrenaline and “Fight or Flight”
Menstrual Cycle Hormones
Contraception Methods
Fertility Treatments
Plant Hormones
Tropisms
Sexual and Asexual Reproduction
Meiosis
Gametes and Fertilisation
DNA Structure and Genome
Genetic Inheritance Terminology
Punnett Squares
Single-Gene Inheritance
Inherited Disorders
Embryo Screening Ethics
Sex Determination (XX/XY)
Variation: Genetic and Environmental
Mutations and Phenotype
Natural Selection
Speciation
Selective Breeding
Genetic Engineering
Cloning (Plants and Animals)
Evolutionary Evidence (Fossils)
Extinction and Biodiversity
Antibiotic Resistance (Natural Selection)
Ecosystems and Communities
Abiotic and Biotic Factors
Adaptations
Sampling: Quadrat and Transects
Interdependence
Food Chains and Food Webs
Trophic Levels and Biomass
Pyramids of Biomass
Decomposition
Microorganisms and Decay
Carbon Cycle
Water Cycle
Material Cycles
Biodiversity and Human Impacts
Land Use and Deforestation
Global Warming and Climate Change
Pollution and Waste Management
Maintaining Biodiversity
Atoms, Elements and Compounds
Mixtures and Separation Techniques
History of the Atom
Subatomic Particles
Electronic Charge and Mass
Atomic Number and Mass Number
Isotopes
Size and Mass of Atoms
Relative Atomic Mass
Electronic Structure
Periodic Table Arrangement
Development of the Periodic Table
Metals vs Non-Metals
Group 0: Noble Gases
Group 1: Alkali Metals
Group 7: Halogens
Transition Metals Properties
Ionic Bonding and Ions
Covalent Bonding
Metallic Bonding
States of Matter and Particle Model
Chemical vs Physical Changes
Nanoparticles
Giant Ionic Structures
Simple Molecular Substances
Giant Covalent Structures
Graphite and Graphene
Diamond
Fullerenes
Polymers
Allotropes of Carbon
Properties and Bonding Links
Melting and Boiling Points
Electrical Conductivity
Density
Conservation of Mass
Relative Formula Mass
Moles and Amount of Substance
Using Balanced Equations
Limiting Reactants
Concentration Calculations
Gas Volumes in Reactions
Percentage Yield
Atom Economy
Reactivity Series
Metal Extraction (Reduction)
Oxidation and Reduction
Acids, Alkalis and pH
Strong vs Weak Acids
Neutralisation
Making Salts
Electrolysis Basics
Electrolysis of Molten Ionic Compounds
Electrolysis of Aqueous Solutions
Reaction Rate Measurement
Factors Affecting Rate
Collision Theory
Catalysts
Reversible Reactions
Dynamic Equilibrium
Le Chatelier’s Principle
Crude Oil and Hydrocarbons
Fractional Distillation
Alkanes
Alkenes
Cracking
Polymerisation
Combustion of Hydrocarbons
Ethanol Production (Fermentation)
Ethanol Production (Hydration)
Pure Substances and Mixtures
Formulations
Chromatography
Identifying Gases
Flame Tests
Metal Hydroxide Precipitation Tests
Sulfate, Carbonate and Halide Tests
Instrumental Analysis (Flame Emission)
Evolution of Earth’s Atmosphere
Atmospheric Composition
Greenhouse Effect
Global Climate Change Evidence
Carbon Footprint
Pollutants and Particulates
Acid Rain and Sulfur Dioxide
Nitrogen Oxides and Smog
Earth’s Resources and Sustainability
Potable Water
Waste Water Treatment
Life Cycle Assessments
Reduce, Reuse, Recycle
Corrosion and Rusting
Preventing Corrosion
Alloys
Ceramics, Polymers and Composites
Haber Process and Fertilisers
NPK Fertilisers
Energy Stores
Energy Transfers
Conservation of Energy
Work Done
Power
Efficiency
Dissipation and Useful Energy
Energy and Temperature Changes
Thermal Insulation in Buildings
Heating and Cooling Curves
Non-Renewable Energy Resources
Renewable Energy Resources
National Grid and Demand
Electric Charge and Current
Potential Difference
Resistance
Series Circuits
Parallel Circuits
I–V Characteristics
LDRs and Thermistors
Electrical Power
Electrical Energy in Circuits
Mains Electricity and Safety
Static Electricity
Density
States of Matter
Internal Energy
Heating and Cooling
Changes of State
Specific Heat Capacity
Latent Heat
Particle Model and Pressure
Gas Pressure and Temperature
Development of the Atomic Model
Nuclear Structure
Isotopes
Radioactive Decay
Alpha, Beta and Gamma Radiation
Half-Life
Uses of Nuclear Radiation
Background Radiation
Contamination vs Irradiation
Radiation Hazards and Risk
Nuclear Fission
Nuclear Fusion
Scalars and Vectors
Contact and Non-Contact Forces
Resultant Forces
Motion Graphs
Newton’s Laws
Stopping Distance
Momentum
Impact Forces and Safety
Work Done and Force–Distance
Moments
Levers and Gears
Pressure in Fluids
Upthrust and Floating
Elasticity and Hooke’s Law
Springs and Extension
Wave Types: Transverse and Longitudinal
Wave Speed Equation
Frequency, Wavelength, Period
Reflection
Refraction
Diffraction
Sound Waves
Ultrasound
Seismic Waves
Electromagnetic Spectrum
EM Waves and Uses
Ionising vs Non-Ionising Radiation
Lenses and Image Formation
Permanent and Induced Magnetism
Magnetic Fields
Electromagnets
Motor Effect
Loudspeakers
Electromagnetic Induction
Generators and Dynamos
Transformers
National Grid and Transformers