Geography · KS3 Y8 · Population & Urbanisation
Megacities
MegacitiesFree4:47Heddy Score 3 of 7, below the standard
What you need to know
- Urbanisation is the growing share of people living in towns and cities; more people now live in urban areas than rural ones.
- There is no single definition of 'urban'; countries use population size, density, infrastructure or jobs.
- A megacity has over 10 million people, and some cities grow far larger.
- China's open-door policy and special economic zones turned the Pearl River Delta, including Guangzhou, into one of the fastest-growing urban regions.
- The UN expects about two-thirds of the world's people to live in cities by 2050.
In this clip
Runs 4:47, from 1:23 to 6:10 of the full video.
Heddy ScoreSeven checks every clip must pass before students see it: trusted, on the map, accurate, focused, accessible, safe, and proven by students.3/7, Below the standard
See the seven stars
- Trusted source · passed. The creator's own upload, live and playable here.
- On the map · not judged yet. A teacher watched it: it mainly teaches this map topic.
- Spec-true · not judged yet. Accurate, and right for the current UK specification.
- Focused · passed. One idea, short enough to watch in one go.
- Accessible · passed. Good captions, clear sound and pictures.
- Safe for children · not judged yet. Right for 11 to 16 year olds, with no sales pitch.
- Proven · not judged yet. Earned from our students: they learn from it, find it helpful and watch it to the end.
Our students
Not enough students yet
Our own students' answers. These are what move ★7 Proven.On YouTube
How the Heddy Score works252K views · 3.69K likes · CrashCourse 17.3M subscribers
As reported by YouTube on 2026-11-02. Not part of the Heddy Score.Why we picked it
A strong overview of why cities are growing so fast, with the Pearl River Delta as a clear example.
CrashCourse on YouTubechecked 2026-10-22
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