Composition And Uses Of Air key idea
Material
The substance or sample being studied.Property
Burning uses oxygen from air. Plants use carbon dioxide, and water vapour in air can condense to form droplets.Evidence
The visible observation, label, or test result.Conclusion
The chemistry idea shown by the evidence.Labelled diagram
Composition And Uses Of Air explain card
Air is a mixture because its gases are physically mixed and can vary slightly in amount. Nitrogen and oxygen make up most of air.Exam cue: Use a labelled observation before the explanation.
- 1Material -> Property: has
- 2Evidence -> Conclusion: supports