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Graphviz (DOT) templates
Industry-standard graph language. Excellent for DAGs, dependency graphs, finite automata, phylogenetic-style trees.
Biology — Ecological Succession
Primary succession from bare rock to climax community.
Life SciencesBiology — PCR Cycle
The three temperature steps of the polymerase chain reaction.
Life SciencesBiology — Animal Kingdom
Major animal phyla split into invertebrates and chordates.
Life SciencesBiology — Thyroid Hormone Feedback
Negative-feedback control of thyroid hormone.
Life SciencesBiology — Nervous System Organisation
Divisions of the vertebrate nervous system.
Life SciencesBiology — Eutrophication
How nutrient runoff leads to oxygen depletion.
Life SciencesChemistry — Reactivity Series
Metals ordered by reactivity, most to least.
Chemistry & PhysicsChemistry — Polymerisation Types
Addition vs condensation polymers with examples.
Chemistry & PhysicsChemistry — Flame Test Colours
Characteristic flame colours of metal cations.
Chemistry & PhysicsChemistry — Separation Techniques
Choosing a separation method by mixture type.
Chemistry & PhysicsChemistry — Reactions of Acids
Typical products when an acid reacts with different substances.
Chemistry & PhysicsChemistry — The Mole Map
Converting between mass, moles, particles and gas volume.
Chemistry & PhysicsMath — Angle Relationships
Angle pairs formed by lines and a transversal.
MathematicsMath — Classifying Triangles
Triangles classified by sides and by angles.
MathematicsPhysics — Energy Stores & Transfers
The energy stores and the pathways that transfer between them.
Scientific PlotsPhysics — Types of Wave
Transverse vs longitudinal waves with examples.
Scientific PlotsBiology — Photosynthesis: Two Stages
Light-dependent reactions feeding the Calvin cycle.
Life SciencesBiology — Digestive Enzymes
Which enzyme breaks down each class of food.
Life SciencesBiology — Homeostasis (Negative Feedback)
The negative-feedback control loop.
Life SciencesBiology — Dichotomous Key
Branching yes/no identification key.
Life SciencesBiology — Genetic Engineering
Steps to insert a gene into a host organism.
Life SciencesBiology — Symbiotic Relationships
Types of close species interactions.
Life SciencesChemistry — How Catalysts Work
A catalyst lowers activation energy and is regenerated.
Chemistry & PhysicsChemistry — Oxidising & Reducing Agents
What oxidising and reducing agents do to electrons.
Chemistry & PhysicsChemistry — Acid–Base Indicators
Colour changes of common indicators.
Chemistry & PhysicsChemistry — Which Bond Type?
A decision tree for predicting bonding.
Chemistry & PhysicsMath — Order of Operations (BODMAS)
The precedence of arithmetic operations.
MathematicsPhysics — Interpreting Motion Graphs
What gradients and areas mean on motion graphs.
Scientific PlotsBiology — Osmoregulation
ADH control of water reabsorption.
Life SciencesBiology — Endocrine Glands
Major endocrine glands and their key hormones.
Life SciencesBiology — DNA Structure
Components of a nucleotide and base pairing.
Life SciencesBiology — Levels of Ecological Organisation
From individual organism up to the biosphere.
Life SciencesBiology — Evidence for Evolution
The main independent lines of evidence.
Life SciencesBiology — Transport in Plants
Xylem and phloem transport pathways.
Life SciencesChemistry — Organic Families
Homologous series grouped by functional group.
Chemistry & PhysicsChemistry — Exothermic vs Endothermic
Energy change and examples for each reaction type.
Chemistry & PhysicsChemistry — Electrochemical Cell
Anode, cathode and ion/electron flow in a galvanic cell.
Chemistry & PhysicsChemistry — Groups of the Periodic Table
The named main groups and their character.
Chemistry & PhysicsMath — The Statistical Process
The data-handling cycle.
MathematicsMath — Uses of Pythagoras & Trig
Choosing between Pythagoras, SOHCAHTOA and the sine/cosine rules.
MathematicsPhysics — Electrical Quantities
How charge, current, voltage, resistance and power relate.
Scientific PlotsPhysics — Newton's Three Laws
The three laws of motion summarised.
Scientific PlotsBiology — Cardiac Cycle
The phases of one heartbeat.
Life SciencesBiology — Menstrual Cycle
Hormonal phases of the menstrual cycle.
Life SciencesBiology — Nerve Impulse
The action-potential cycle of a neuron.
Life SciencesBiology — Five Kingdoms
The five-kingdom classification of life.
Life SciencesBiology — Major Biomes
The world's major terrestrial and aquatic biomes.
Life SciencesBiology — Decomposition & Recycling
How nutrients return to producers.
Life SciencesChemistry — Factors Affecting Rate
What speeds up a chemical reaction and why.
Chemistry & PhysicsChemistry — Le Chatelier Factors
How changes shift a system at equilibrium.
Chemistry & PhysicsChemistry — Preparing Salts
Choosing a method to prepare a salt.
Chemistry & PhysicsChemistry — Tests for Gases
Laboratory tests that identify common gases.
Chemistry & PhysicsMath — Solving Equations
Picking a method for each equation type.
MathematicsMath — Averages & Spread
Measures of central tendency and spread.
MathematicsPhysics — Types of Radiation
Alpha, beta and gamma radiation and their penetration.
Scientific PlotsPhysics — Energy Efficiency
Useful and wasted energy from an input.
Scientific PlotsBiology — Levels of Protein Structure
Primary through quaternary protein structure.
Life SciencesBiology — Membrane Transport
Passive and active routes across the cell membrane.
Life SciencesBiology — Components of Blood
Plasma and the cellular components of blood.
Life SciencesBiology — Muscle Contraction
The sliding-filament sequence.
Life SciencesBiology — Flower Structure
Male and female reproductive parts of a flower.
Life SciencesBiology — Seed Germination
From dormant seed to seedling.
Life SciencesChemistry — Types of Isomerism
Structural and stereo-isomerism.
Chemistry & PhysicsChemistry — Strong vs Weak Acids
Degree of ionisation distinguishes acid strength.
Chemistry & PhysicsChemistry — Extraction of Aluminium
Electrolytic extraction of aluminium from bauxite.
Chemistry & PhysicsChemistry — Collision Theory
Conditions for a successful reactive collision.
Chemistry & PhysicsMath — Types of Events
How probabilities combine for different event types.
MathematicsMath — Vector Operations
Operations you can perform on vectors.
MathematicsPhysics — Electromagnetic Induction
Faraday's and Lenz's laws in a chain.
Scientific PlotsPhysics — Generators vs Motors
The complementary energy conversions.
Scientific PlotsBiology — Aerobic Respiration
The four stages of aerobic respiration and ATP yield.
Life SciencesBiology — Transpiration Stream
Water movement from roots to leaves.
Life SciencesBiology — Plant Tropisms
Auxin-driven directional growth responses.
Life SciencesBiology — How Vaccines Work
Building immunological memory from a vaccine.
Life SciencesBiology — Antibiotic Resistance
Natural selection of resistant bacteria.
Life SciencesBiology — C3, C4 & CAM Fixation
Three strategies for fixing carbon.
Life SciencesChemistry — Titration Procedure
Steps of an acid–base titration.
Chemistry & PhysicsChemistry — Paper Chromatography
Separating a mixture and finding Rf.
Chemistry & PhysicsChemistry — Oxidation Number Rules
The rules for assigning oxidation numbers.
Chemistry & PhysicsChemistry — Empirical Formula Steps
From masses to an empirical formula.
Chemistry & PhysicsMath — Solving Quadratics
Four methods for solving a quadratic.
MathematicsMath — Sampling Methods
Common statistical sampling techniques.
MathematicsPhysics — Series vs Parallel Circuits
Contrasting the rules for series and parallel circuits.
Scientific PlotsPhysics — Applications of Electromagnetism
Everyday devices that use electromagnetism.
Scientific PlotsBiology — Blood Vessels
Structure and role of arteries, veins and capillaries.
Life SciencesBiology — The Eye
Path of light through the eye to the brain.
Life SciencesBiology — The Ear
How sound is transmitted through the ear.
Life SciencesBiology — Excretory Organs
Organs of excretion and what each removes.
Life SciencesBiology — Types of Pollination
Self vs cross pollination and pollinator adaptations.
Life SciencesBiology — Food Chain
A simple linear food chain with trophic roles.
Life SciencesChemistry — Reactions of Alcohols
The key reactions an alcohol can undergo.
Chemistry & PhysicsChemistry — Rusting & Its Prevention
Conditions for rusting and ways to prevent it.
Chemistry & PhysicsChemistry — Types of Fuel
Fossil, bio- and hydrogen fuels and their products.
Chemistry & PhysicsChemistry — Giant Structures
Giant ionic, covalent and metallic structures.
Chemistry & PhysicsMath — Geometric Transformations
The four geometric transformations.
MathematicsMath — Uses of Percentages
Common percentage calculation types.
MathematicsPhysics — Effects of a Force
What a resultant force can do to an object.
Scientific PlotsPhysics — Comparing Energy Resources
Trade-offs of renewable, fossil and nuclear sources.
Scientific PlotsBiology — Glycolysis: Investment & Payoff
The energy-investment and energy-payoff phases.
Life SciencesBiology — Organelle Functions
Key organelles and what they do.
Life Sciences