frames

Horizon

BBC TwoDocumentary · 62 seasons

7.5TMDB

See what people think of Horizon

Rate it, keep track of what's next and see what friends think. Free.

Continue with AppleContinue with Googleor use your email

Season 20

Questions

Where can I watch Horizon?

Horizon streams on PBS.

How many episodes are in Season 20?

Season 20 has 24 episodes.

Episode roomHorizon S20 E16

Horizon · Season 20 · Episode 16

Dr. Priestley and the Breath of Life

Monday, October 10 · 60 min

This report by Horizon examines the experiments of Joseph Priestly on blood and oxygen in photosynthesis.

Episode roomOpen room

–

No scores yet

Yours will be the first

Rate

Sign in to post your take.

No takes yet

Score it and yours is the first.