Respiration and the human respiratory system

School – Ysgol Bro Idris
Age – KS4
Subject – Science: Biology
Language – Welsh and English
Length of activity – 4-6 hours


A collection of tasks that ask pupils to define key terms, label diagrams, sequence sentences, to compare aerobic and anaerobic respiration and to explain what happens in a bell jar model and a respiration in peas experiment.

The author recommends the Tanio and BBC Bitesize websites. When teaching face to face, the author uses the bell jar model and an exercise that requires the pupils to hold one arm above their heads and the other below, and to open and close their hands as quickly as possible for 2 minutes. The raised hand respires anaerobically and therefore will start to burn.