Biology · KS3 Y7 · Cells & Organisation
Photosynthesis — the word equation
Photosynthesis — the word equationFree1:44Heddy Score 3 of 7, below the standard
What you need to know
- Photosynthesis matters because it produces the glucose that plants, and then other living things, depend on.
- The word equation is carbon dioxide plus water, using light energy, producing glucose and oxygen.
- The aerobic respiration equation runs the other way in terms of those substances: glucose and oxygen produce carbon dioxide and water.
- Light is essential for photosynthesis, which is why the equation is written with light over the arrow.
In this clip
Runs 1:44, from 0:33 to 2:17 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 works6.43M views · 51.7K likes · Amoeba Sisters 2.98M subscribers
As reported by YouTube on 2026-11-02. Not part of the Heddy Score.Why we picked it
It states the photosynthesis word equation and sets it next to respiration so the raw materials and products are clear.
Amoeba Sisters on YouTubechecked 2026-10-18
Plays from youtube-nocookie.com. No YouTube cookies until you press play.