Composition of Air

What you need to learn in this topic

1. Plan ways to determine and record the composition of air
2. Synthesise the composition of air from a pie chart
3. Justify the importance of oxygen, nitrogen carbon dioxide and inert gases in daily life
4. Appreciate the carbon cycle and the oxygen cycle in maintaining the composition of gases in the air
5. Solve problems when there is/are interferences to the oxygen and the carbon cycle