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Earth & Environmental Science, as powerbooks

The entire NSW Stage 6 course (Year 11–12), rebuilt as short, interactive powerbooks. Each one is written to be read once, slowly, in the order the mind actually builds — clear, complete, and self-checking. The aim is the old idea behind a good reference book: read it properly and you simply know the material, without cramming.

Your progress26 powerbooks · 0/133 sections locked in0%
Progress is saved on this device as you work through each book.

How these are built

Knowledge onto knowledge
Each book is sequenced the way understanding actually builds, not in syllabus order. A new idea is only introduced once there is something to attach it to.
Earn every word
No term appears before the concept it names. You meet "asthenosphere" only after you understand the layer it describes — so the word feels obvious, not memorised.
The test is the lesson
A short check is woven in after each idea, and anything that doesn’t land is re-explained a different way and asked again later. Reinforcement, not exam pressure.

Year 11 (Preliminary)

Year 12 (HSC)

About this course

  • Structure follows the NSW NESA Stage 6 Earth and Environmental Science Syllabus (2017): four modules in Year 11, four in Year 12.
  • All explanations are original. This is not a copy of the syllabus, and the site is not affiliated with or endorsed by NESA. The official syllabus is published on the NESA website.
  • Books are released and improved over time; each is read in learning order, with the testing built in.

One book at a time, in the order things actually make sense — until the whole course is something you understand rather than something you revised.

How Many? Real answers, live tools and games

howmany.pro answers the questions that start with “how many” — researched, sourced and dated — and pairs them with free interactive tools you can use right in your browser: an invoice generator, percentage and tile calculators, a guitar tuner, a metronome, daily trivia and more.

Free tools

Invoice Generator · Percentage Calculator · Tile Calculator · Guitar Tuner · Metronome · Exam Timer · Trivium Daily Quiz · Cursor Playground

Popular answers

Squares on a chessboard · Pokémon types · Bones in the human body · Galaxies in the universe · Moons of Saturn · Piano keys · Types of cheese · Languages in the world · Countries in the world · Continents · Stars in the Milky Way · Neurons in the brain · Adult teeth · Spider legs · Shark teeth · Bee eyes · Heart chambers · Pyramids in Egypt · Zeros in a billion · Cards in a standard deck · Cards in a tarot deck · Scrabble tiles · Notes in an octave · Types of pasta · Dominoes in a set

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