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How to learn High school: Science

California academic standards: Science, High school

0 of 30 concepts ready to learn · Markdown, for your AI

1. Waves and Their Applications in Technologies for Information Transfer

  1. Waves & Different Materials: 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

2. Energy

  1. Motors & the Motor Effect: 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
  2. Body Temperature Regulation: 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)

3. Motion and Stability: Forces and Interactions

  1. Electromagnets: 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
  2. Newton's First & Second Laws: 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

4. Matter and Its Interactions

  1. Physical vs Chemical Changes: 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
  2. Investigating Forces: Plan and carry out investigations into forces, including measuring force with a newton meter, investigating Hooke's Law, and collecting and interpreting motion data to test Newton's laws
  3. Metals vs Non-Metals: 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

5. Earth and Human Activity

  1. Earth's Atmosphere & CO2: 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

6. Earth's Systems

  1. The Carbon Cycle: Describe the carbon cycle, tracing carbon through photosynthesis, respiration, feeding, decomposition, and combustion, and explain the role of each process

7. Earth's Place in the Universe

  1. Life Cycle of a Star: 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

8. Biological Evolution: Unity and Diversity

  1. Biodiversity & Resilience: 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)
  2. How Natural Selection Works: Explain natural selection as the mechanism of evolution: heritable variation + competition for resources + differential survival and reproduction = change in allele frequency over generations
  3. Extinction & Rapid Change: Explain how environmental change can outpace a species' ability to adapt through natural selection, leading to extinction, using historical and contemporary examples
  4. Evidence for Evolution: 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

9. Heredity: Inheritance and Variation of Traits

  1. Chromosomes, Genes & DNA: 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
  2. Predicting Inherited Traits: 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
  3. Genetic Mutation: 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

10. Ecosystems: Interactions, Energy, and Dynamics

  1. Predator Loss and Ecosystem Effects: 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

11. From Molecules to Organisms: Structures and Processes

  1. Aerobic Respiration: 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
  2. Photosynthesis: 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
  3. Cells to Organ Systems: Describe the hierarchical organisation of multicellular organisms: cells → tissues → organs → organ systems → organism
  4. How the Body Stays in Balance: 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

12. Life Sciences

  1. Digestion & Enzymes: Describe the organs of the human digestive system and how food is physically and chemically digested, including the role of enzymes as biological catalysts
  2. Grouping Species Using DNA: Explain cladistics: organisms are grouped by shared derived characters, not just similarity; how phylogenetic trees are built using molecular data (DNA sequence alignment) and the molecular clock; explain why birds are technically a group within dinosaurs (crown Avemetatarsalia); distinguish convergent evolution (unrelated species evolving similar traits) from parallel evolution; introduce horizontal gene transfer and why the tree of life is more accurately a web; explain why classification systems keep changing as new data emerge

13. Physical Sciences

  1. Relative Motion: 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
  2. Ceramics, Polymers & Composites: Describe the properties and uses of ceramics (hard, brittle, heat-resistant), polymers (flexible, lightweight, variable), and composites (combine properties of constituent materials), giving real-world examples of each

14. Scientific Inquiry

  1. Drawing conclusions from evidence (age 12+): 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
  2. Writing Science Reports: 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

15. Disciplinary Core Ideas · Structure and Function

  1. DNA & Genes: 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')