# High school: Science

A course roadmap (science). Language: en. By @si. Licence: CC BY-SA 4.0. 0 of 63 concepts ready. In the app: https://ai.page/roadmap/in-sci-high-school

Part of: [Indiana: Science](https://ai.page/roadmap/in-sci.md)

Goal: Indiana academic standards: Science, High school

## 1. Environmental Impacts of Animal Agriculture

- [Extinction & Rapid Change](https://ai.page/c/extinction-and-rapid-change/index.md): Explain how environmental change can outpace a species' ability to adapt through natural selection, leading to extinction, using historical and contemporary examples

## 2. Anatomy and Physiology

- [Parts of Plant and Animal Cells](https://ai.page/c/parts-of-plant-and-animal-cells/index.md): Describe the functions of the main components of plant and animal cells: cell wall, cell membrane, cytoplasm, nucleus, vacuole, mitochondria, ribosomes, and chloroplasts
- [Plant Cells vs Animal Cells](https://ai.page/c/plant-cells-vs-animal-cells/index.md): Compare plant and animal cells, identifying shared features and structures unique to plant cells (cell wall, vacuole, chloroplasts)

## 3. Animal Reproduction

- [Human Reproduction](https://ai.page/c/human-reproduction/index.md): Describe the structure and function of the male and female human reproductive systems, and explain the processes of fertilisation, gestation, and birth including the role of the placenta

## 4. Animal Nutrition

- [Calculating Dietary Energy](https://ai.page/c/calculating-dietary-energy/index.md): Calculate and evaluate energy intake and requirements in a healthy daily diet, interpreting food labels and nutritional data

## 5. Energy

- [Body Temperature Regulation](https://ai.page/c/body-temperature-regulation/index.md): Explain how the human body detects and responds to environmental changes including temperature, including the role of the skin in temperature regulation (sweating, shivering, vasodilation, vasoconstriction)
- [Series vs parallel circuits](https://ai.page/c/series-vs-parallel-circuits/index.md): Describe and apply the rules for current, voltage, and resistance in series and parallel circuits, and explain the practical uses of each circuit type
- [Motors & the Motor Effect](https://ai.page/c/motors-and-the-motor-effect/index.md): Explain the motor effect as the force on a current-carrying conductor in a magnetic field, and describe how this principle is used in electric motors and loudspeakers

## 6. Matter and its Interactions

- [Reactions That Release or Absorb Heat](https://ai.page/c/reactions-that-release-or-absorb-heat/index.md): Distinguish between exothermic reactions (release energy, temperature rises) and endothermic reactions (absorb energy, temperature falls), with everyday and industrial examples
- [Metals vs Non-Metals](https://ai.page/c/metals-vs-non-metals/index.md): Compare the physical and chemical properties of metals and non-metals, explaining metallic properties (malleability, lustre, conductivity) and how position in the periodic table predicts reactivity

## 7. Biological Evolution: Unity and Diversity

- [Biodiversity & Resilience](https://ai.page/c/biodiversity-and-resilience/index.md): Explain what biodiversity means, why high biodiversity makes ecosystems more resilient, and describe the ways human activity threatens biodiversity (habitat destruction, pollution, invasive species, climate change)
- [How Natural Selection Works](https://ai.page/c/how-natural-selection-works/index.md): Explain natural selection as the mechanism of evolution: heritable variation + competition for resources + differential survival and reproduction = change in allele frequency over generations
- [Evidence for Evolution](https://ai.page/c/evidence-for-evolution/index.md): Describe the main types of evidence for evolution: the fossil record (change over time), comparative anatomy (homologous structures), and the geographic distribution of related species

## 8. Heredity: Inheritance and Variation of Traits

- [Chromosomes, Genes & DNA](https://ai.page/c/chromosomes-genes-and-dna/index.md): Describe the relationship between chromosomes, genes, and DNA in heredity, including the double helix structure of DNA and the historical roles of Watson, Crick, Franklin, and Wilkins
- [Predicting Inherited Traits](https://ai.page/c/predicting-inherited-traits/index.md): Explain how alleles are inherited in sexual reproduction and use Punnett squares to predict the probability of offspring inheriting a characteristic, including dominant and recessive alleles
- [Genetic Mutation](https://ai.page/c/genetic-mutation/index.md): Explain genetic mutation as a random change in DNA sequence, describe causes of mutation (e.g. radiation, chemicals, copying errors), and explain that most mutations are neutral, some harmful, and a few beneficial

## 9. Ecosystems: Interactions, Energy and Dynamics

- [The Carbon Cycle](https://ai.page/c/the-carbon-cycle/index.md): Describe the carbon cycle, tracing carbon through photosynthesis, respiration, feeding, decomposition, and combustion, and explain the role of each process
- [Predator Loss and Ecosystem Effects](https://ai.page/c/predator-loss-and-ecosystem-effects/index.md): Quantify energy transfer efficiency through trophic levels (~10% rule); explain trophic cascades: how removing an apex predator triggers a chain of ecosystem changes (sea otters → sea urchin explosion → kelp forest collapse); define 'fishing down the food web'; evaluate evidence for ocean rewilding — shark reintroduction, whale recovery driving nutrient cycling; understand why ecosystem-based fisheries management is needed

## 10. From Molecules to Organisms: Structures and Processes

- [Aerobic Respiration](https://ai.page/c/aerobic-respiration/index.md): Explain aerobic respiration as the process by which organisms release energy from glucose using oxygen, producing carbon dioxide and water; write and interpret the word equation: glucose + oxygen → carbon dioxide + water
- [Photosynthesis](https://ai.page/c/photosynthesis/index.md): Explain photosynthesis as the process by which plants use light energy to convert carbon dioxide and water into glucose and oxygen, and describe how mineral nutrients are absorbed through roots
- [Cells to Organ Systems](https://ai.page/c/cells-to-organ-systems/index.md): Describe the hierarchical organisation of multicellular organisms: cells → tissues → organs → organ systems → organism
- [How the Body Stays in Balance](https://ai.page/c/how-the-body-stays-in-balance/index.md): Explain homeostasis as the process of maintaining a stable internal environment; describe the main feedback loop systems (negative feedback) using blood glucose regulation (insulin/glucagon) and body temperature as concrete examples; and connect the endocrine system (hormone-secreting glands) to the nervous system as two complementary communication systems with different speeds and durations

## 11. Waves and their Applications in Technologies for Information Transfer

- [Waves & Different Materials](https://ai.page/c/waves-and-different-materials/index.md): Explain how waves can be absorbed, transmitted, or reflected by different materials, and apply these interactions to explain colour perception, sight, communication technologies, and the effects of different surfaces on wave behaviour

## 12. Forces

- [Newton's First & Second Laws](https://ai.page/c/newton-s-first-and-second-laws/index.md): State and apply Newton's First Law (an object stays at rest or constant velocity unless acted on by a resultant force) and Second Law (force = mass × acceleration), including the relationship between mass, force, and acceleration

## 13. The Effect of Human Population and Activities on the Environment

- [Earth's Atmosphere & CO2](https://ai.page/c/earth-s-atmosphere-and-co2/index.md): Describe the composition of Earth's atmosphere (mainly nitrogen and oxygen, with small amounts of CO₂ and other gases), explain how human activity increases CO₂, and describe the impact on global climate

## 14. Flow of Matter and Energy

- [Finite Resources & Recycling](https://ai.page/c/finite-resources-and-recycling/index.md): Explain that many raw materials (metals, fossil fuels, minerals) are finite resources, describe the environmental costs of extraction, and evaluate the benefits of recycling and the circular economy
- [Renewable vs non-renewable energy](https://ai.page/c/renewable-vs-non-renewable-energy/index.md): Distinguish between renewable energy resources (solar, wind, hydroelectric, tidal, geothermal, biomass) and non-renewable resources (coal, oil, gas, nuclear), comparing their advantages, disadvantages, and environmental impacts
- [The Rock Cycle](https://ai.page/c/the-rock-cycle/index.md): Explain the rock cycle: how igneous rocks form from magma, sedimentary rocks from compressed sediment, and metamorphic rocks from heat and pressure, and how all rock types can transform into one another over geological time

## 15. Earth's Place in the Universe

- [Life Cycle of a Star](https://ai.page/c/life-cycle-of-a-star/index.md): Describe the life cycle of a star from nebula through main sequence to its end state (white dwarf, neutron star, or black hole depending on mass), and relate the life cycle to the origin of elements heavier than hydrogen

## 16. Absorption and Excretion, the Urinary System

- [Digestion & Enzymes](https://ai.page/c/digestion-and-enzymes/index.md): Describe the organs of the human digestive system and how food is physically and chemically digested, including the role of enzymes as biological catalysts

## 17. Absorption and Excretion, the Respiratory System

- [Gas Exchange & Breathing](https://ai.page/c/gas-exchange-and-breathing/index.md): Describe the structure of the human gas exchange system (trachea, bronchi, bronchioles, alveoli) and explain how the mechanism of breathing — using pressure changes from rib and diaphragm movement — moves air in and out of the lungs

## 18. Transport, the Lymphatic System and Immune Mechanisms

- [Pathogens & the Immune System](https://ai.page/c/pathogens-and-the-immune-system/index.md): Explain how pathogens (bacteria, viruses, and fungi) cause disease and describe how the immune system responds, including the roles of white blood cells (phagocytosis, antibody production) and the concept of immunity

## 19. Transport, Blood and the Cardiovascular System

- [Heart Structure & Double Circulation](https://ai.page/c/heart-structure-and-double-circulation/index.md): Describe the structure of the heart (four chambers, valves, coronary arteries) and explain how it pumps deoxygenated blood to the lungs and oxygenated blood to the body in a double circulatory system

## 20. Integration and Coordination, the Nervous System

- [Neurons & Brain Structure](https://ai.page/c/neurons-and-brain-structure/index.md): Explain how neurons transmit signals as electrochemical impulses across synapses, describe how the brain is organised (lobes and functions, limbic system for emotion), and explain neuroplasticity — why learning and practice physically change brain structure — connecting to optical illusions as evidence that the brain constructs reality rather than passively recording it

## 21. Movement and Support, the Skeletal System

- [The Human Skeleton](https://ai.page/c/the-human-skeleton/index.md): Describe the structure and four main functions of the human skeleton: support, protection, movement, and production of blood cells in bone marrow

## 22. Particle and Wave Nature of Light

- [Wave Properties & Types](https://ai.page/c/wave-properties-and-types/index.md): Describe waves in terms of amplitude, wavelength, frequency, and wave speed; distinguish transverse waves (oscillation perpendicular to direction of travel) from longitudinal waves (oscillation parallel); and use the wave equation v = fλ

## 23. Geometric Optics

- [Ray Diagrams & Images](https://ai.page/c/ray-diagrams-and-images/index.md): Construct ray diagrams to show the formation of images by plane mirrors and converging lenses, identifying whether images are real or virtual, magnified or diminished, upright or inverted
- [Drawing Ray Diagrams](https://ai.page/c/drawing-ray-diagrams/index.md): Draw ray diagrams to show reflection at a plane mirror (angle of incidence = angle of reflection) and refraction at a boundary between media; use ray diagrams to locate images and explain how lenses and mirrors work

## 24. Electromagnetic Induction

- [Ohm's Law: voltage, current, resistance](https://ai.page/c/ohm-s-law-voltage-current-resistance/index.md): Apply Ohm's Law (V = IR) to calculate current, voltage, or resistance in a simple circuit, and explain that resistance opposes the flow of current

## 25. Magnetism

- [Electromagnets](https://ai.page/c/electromagnets/index.md): Describe the magnetic effect of an electric current (a current-carrying wire produces a magnetic field), and investigate how the strength of an electromagnet depends on current, number of coil turns, and core material

## 26. Electricity

- [Power: watts and energy per second](https://ai.page/c/power-watts-and-energy-per-second/index.md): Define power as the rate of energy transfer (power = energy ÷ time, measured in watts), and compare energy transfer rates in different everyday contexts
- [Newton's Third Law](https://ai.page/c/newton-s-third-law/index.md): State and apply Newton's Third Law: every force has an equal and opposite reaction force acting on a different object, distinguishing action-reaction pairs from balanced forces

## 27. Fluids

- [Moments, Pressure & Hooke's Law](https://ai.page/c/moments-pressure-and-hooke-s-law/index.md): Calculate the turning effect (moment = force × perpendicular distance), explain how pressure is transmitted equally in liquids (Pascal's principle) and the concept of atmospheric pressure, and describe Hooke's Law (extension ∝ force up to the elastic limit)
- [Deformation & Fluid Pressure](https://ai.page/c/deformation-and-fluid-pressure/index.md): Explain forces associated with deforming objects (elastic and inelastic deformation), thermal expansion and contraction of materials, and how fluid pressure acts in all directions and increases with depth

## 28. Temperature and Thermal Energy Transfer

- [Conduction, convection, and radiation](https://ai.page/c/conduction-convection-and-radiation/index.md): Describe and compare the three mechanisms of heat transfer — conduction (particle vibration through solids), convection (fluid movement in liquids/gases), and radiation (infrared waves) — and explain that the rate of transfer depends on temperature difference

## 29. Obtaining, Evaluating and Communicating Information · Obtaining, evaluating, and communicating information in 9–12 builds on K–8 experiences and progresses to evaluating the validity and reliability o

- [Drawing conclusions from evidence (age 12+)](https://ai.page/c/drawing-conclusions-from-evidence-age-12/index.md): Identify patterns and trends in data, draw conclusions that directly address the hypothesis with quantitative reference to evidence, and evaluate the investigation by distinguishing between systematic and random errors and proposing targeted improvements
- [Writing Science Reports](https://ai.page/c/writing-science-reports/index.md): Communicate scientific findings in a structured report using appropriate scientific vocabulary, SI units, and standard notation; describe how peer review and replication contribute to the reliability of scientific knowledge

## 30. Planning and Carrying out Investigations · Planning and carrying out investigations in 9-12 builds on K-8 experiences and progresses to include investigations that provide evidence for and test concep

- [Controlling variables (age 11+)](https://ai.page/c/controlling-variables-age-11/index.md): Form a testable scientific hypothesis linking an independent variable to a predicted outcome, plan a full investigation identifying independent, dependent, and control variables, sample size, and risk assessment

## 31. Physical Science · Waves and Their Applications in Technologies for Information Transfer

- [Seismic Waves & Earth's Interior](https://ai.page/c/seismic-waves-and-earth-s-interior/index.md): Distinguish between P-waves (compression, travel through solids and liquids) and S-waves (shear, cannot pass through liquids); explain why a seismic shadow zone exists on the far side of an earthquake; describe how seismologists use wave refraction and reflection to infer that Earth has a solid inner core, liquid outer core, mantle, and crust

## 32. Physical Science · Energy

- [Energy stores and transfers](https://ai.page/c/energy-stores-and-transfers/index.md): Identify the main energy stores (kinetic, gravitational potential, elastic potential, thermal, chemical, nuclear, electromagnetic) and the pathways by which energy is transferred between stores (mechanically, electrically, by heating, by radiation)
- [Energy can't be created or destroyed](https://ai.page/c/energy-can-t-be-created-or-destroyed/index.md): Explain the principle of conservation of energy (energy cannot be created or destroyed, only transferred between stores), and describe how energy is dissipated as thermal energy to the surroundings in all real processes

## 33. Physical Science · Motion and Stability: Forces and Interactions

- [Static electricity and sparks](https://ai.page/c/static-electricity-and-sparks/index.md): Explain static electricity as the build-up of electric charge through friction, describe how charged objects attract or repel each other, and relate static discharge to everyday phenomena such as lightning
- [Relative Motion](https://ai.page/c/relative-motion/index.md): Explain relative motion — how the apparent speed and direction of an object depends on the observer's own motion — using everyday examples such as trains and cars passing

## 34. Physical Science · Matter and Its Interactions

- [Radiometric Dating](https://ai.page/c/radiometric-dating/index.md): Explain how radiometric dating works — radioactive isotopes decay at a known rate (half-life), so measuring the ratio of parent to daughter isotope in a rock or fossil gives an absolute age; distinguish between carbon-14 (useful up to ~50,000 years) and uranium-lead (useful for millions to billions of years)
- [Physical vs Chemical Changes](https://ai.page/c/physical-vs-chemical-changes/index.md): Distinguish between physical changes (reversible, no new substances formed) and chemical changes (new substances formed, often irreversible), using conservation of mass to understand both types
- [The Periodic Table](https://ai.page/c/the-periodic-table/index.md): Describe the organisation of the periodic table into periods and groups, explain the contribution of Mendeleev, and use the table to identify metals, non-metals, and predict patterns in reactivity

## 35. Earth and Space Science · Earth's Systems

- [How Tectonic Plates Move](https://ai.page/c/how-tectonic-plates-move/index.md): Understand that convection currents in the molten mantle drive the movement of rigid tectonic plates; distinguish between convergent (collision/subduction), divergent (spreading ridges), and transform (sliding) plate boundaries; explain why volcanoes, earthquakes, and mountain chains cluster at boundaries; introduce the Wilson cycle of supercontinent assembly and breakup

## 36. Earth and Space Science · Earth's Place in the Universe

- [Why We Have Seasons](https://ai.page/c/why-we-have-seasons/index.md): Explain that the seasons are caused by the tilt of Earth's axis during its orbit around the Sun, distinguishing this from the common misconception that seasons are caused by changing distance from the Sun
- [Universal Gravitation](https://ai.page/c/universal-gravitation/index.md): Describe gravity as a universal attractive force between all masses, explain that orbital motion arises because gravity provides the centripetal force keeping objects in orbit, and compare gravitational field strengths on different planets
- [Where Elements Come From](https://ai.page/c/where-elements-come-from/index.md): Explain stellar nucleosynthesis: the Big Bang produced mainly hydrogen and helium; main-sequence fusion builds elements up to iron; and supernovae produce elements heavier than iron and scatter them into space — meaning the atoms in our bodies were forged in ancient stars
- [Galaxies and the universe](https://ai.page/c/galaxies-and-the-universe/index.md): Describe the scale of the universe, including the structure of galaxies, the position of the Sun in the Milky Way, and the use of light years as a unit of distance, and appreciate why space exploration requires enormous timescales

## 37. Life Science · Ecosystems: Interactions, Energy, and Dynamics

- [Food Webs & Interdependence](https://ai.page/c/food-webs-and-interdependence/index.md): Construct and interpret food webs showing the interdependence of organisms in an ecosystem, explaining how a change in one population affects others

## 38. Life Science · From Molecules to Organisms: Structures and Processes

- [DNA & Genes](https://ai.page/c/dna-and-genes/index.md): Describe the double helix structure of DNA (base pairs, complementarity), explain how genes are sections of DNA that code for proteins, introduce the central dogma (DNA → mRNA → protein) conceptually, and discuss the ethical implications of CRISPR gene editing — including potential benefits (genetic disease treatment) and concerns (germline editing, 'designer babies')

## Health: 0 of 100

Of its 63 own concepts: 0 have an explanation, 0 have practice, 0 have a measurement question, 0 have a checked version.

Findings (each is a task for anyone's AI):

- Extinction & Rapid Change comes before How Natural Selection Works, which it needs
- Extinction & Rapid Change has no explanation yet
- Parts of Plant and Animal Cells has no explanation yet
- Plant Cells vs Animal Cells has no explanation yet
- Human Reproduction has no explanation yet
- Calculating Dietary Energy has no explanation yet
- Body Temperature Regulation has no explanation yet
- Series vs parallel circuits comes before Ohm's Law: voltage, current, resistance, which it needs
- Series vs parallel circuits has no explanation yet
- Motors & the Motor Effect comes before Electromagnets, which it needs
- Motors & the Motor Effect has no explanation yet
- Reactions That Release or Absorb Heat has no explanation yet
- Metals vs Non-Metals comes before The Periodic Table, which it needs
- Metals vs Non-Metals has no explanation yet
- Biodiversity & Resilience comes before Food Webs & Interdependence, which it needs
- Biodiversity & Resilience has no explanation yet
- How Natural Selection Works comes before Genetic Mutation, which it needs
- How Natural Selection Works has no explanation yet
- Evidence for Evolution has no explanation yet
- Chromosomes, Genes & DNA has no explanation yet
- Predicting Inherited Traits has no explanation yet
- Genetic Mutation has no explanation yet
- The Carbon Cycle comes before Aerobic Respiration, which it needs
- The Carbon Cycle comes before Photosynthesis, which it needs
- The Carbon Cycle has no explanation yet
- Predator Loss and Ecosystem Effects has no explanation yet
- Aerobic Respiration comes before Gas Exchange & Breathing, which it needs
- Aerobic Respiration has no explanation yet
- Photosynthesis has no explanation yet
- Cells to Organ Systems has no explanation yet
- How the Body Stays in Balance has no explanation yet
- Waves & Different Materials comes before Wave Properties & Types, which it needs
- Waves & Different Materials has no explanation yet
- Newton's First & Second Laws has no explanation yet
- Earth's Atmosphere & CO2 has no explanation yet
- Finite Resources & Recycling has no explanation yet
- Renewable vs non-renewable energy has no explanation yet
- The Rock Cycle has no explanation yet
- Life Cycle of a Star comes before Galaxies and the universe, which it needs
- Life Cycle of a Star has no explanation yet
- Digestion & Enzymes has no explanation yet
- Gas Exchange & Breathing has no explanation yet
- Pathogens & the Immune System has no explanation yet
- Heart Structure & Double Circulation has no explanation yet
- Neurons & Brain Structure has no explanation yet
- The Human Skeleton has no explanation yet
- Wave Properties & Types has no explanation yet
- Ray Diagrams & Images has no explanation yet
- Drawing Ray Diagrams has no explanation yet
- Ohm's Law: voltage, current, resistance has no explanation yet

Credit: The structure of Indiana academic standards: Science (https://media.doe.in.gov/news/disciplinary-core-ideas.pdf); concepts from the Marble Skill Taxonomy (v1), © Generative Spark, Inc. (withmarble.com), text CC BY-SA 4.0, database ODbL 1.0: https://github.com/withmarbleapp/os-taxonomy, mapped to its standards by Marble.
