Chemistry · KS3 Y8 · The Periodic Table

Groups & periods

c36Free1:20Heddy Score 2 of 7, below the standard

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What you need to know

  • Columns of the periodic table are groups and rows are periods.
  • Elements in a group behave in similar ways.

In this clip

0:00–1:20Groups & periodsc36
1:20–2:22Metallic bondinggcse-chem-5-2-1-5
2:22–15:23The three types of chemical bondgcse-chem-5-2-1-1
15:23–21:23Covalent bonds and small moleculesgcse-chem-5-2-1-4a
21:23–23:55Giant covalent structuresgcse-chem-5-2-2-6
Also coversGraphene and fullerenesgcse-chem-5-2-3-3
Heddy Score2/7, Below the standard
  • 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 · not judged yet. 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.
How the Heddy Score works

Why we picked it

A long, thorough GCSE walkthrough of ionic, covalent and metallic bonding with a section on carbon structures; the creator notes one slip of terminology.

Science Shorts on YouTubechecked 2026-10-16