Contents
Key Stage 2
Meaning
The air is what we breath in.
Key Stage 3
Meaning
The air is a mixture of gases that we breath.
About the Air
- The main gases are; Nitrogen (78%), Oxygen (21%), Argon (1%), Carbon Dioxide (0.04%) and Water Vapour (% varies).
Key Stage 4
Meaning
The air is a mixture of gases that we breath.
About the Air
- The main gases are; Nitrogen (78%), Oxygen (21%), Argon (1%), Carbon Dioxide (0.04%) and Water Vapour (% varies).