Physics · KS3 Y7 · Space & Gravity

Seasons and the tilted Earth

Seasons and the tilted EarthFree2:43Heddy Score 3 of 7, below the standard

What you need to know

  • Earth’s axis stays tilted in roughly the same direction as Earth orbits the Sun.
  • A hemisphere tilted towards the Sun receives more direct sunlight and has longer days.
  • The seasons are opposite in the Northern and Southern Hemispheres.

In this clip

Runs 2:43, from 0:10 to 2:53 of the full video.

Heddy Score3/7, 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.
★ passed · ☆ pending · ✕ failed
Our students

Not enough students yet

Our own students' answers. These are what move ★7 Proven.
On YouTube

3.7M views · California Academy of Sciences 247K subscribers

As reported by YouTube on 2026-11-02. Not part of the Heddy Score.
How the Heddy Score works

Why we picked it

Uses an Earth–Sun model to show why axial tilt causes the seasons.

California Academy of Sciences on YouTubechecked 2026-10-20

Plays from youtube-nocookie.com. No YouTube cookies until you press play.