🌍 The Composition of Air
Clean · Dry · Invisible · Perfectly Balanced
🍕 The Atmospheric Pizza
Imagine the entire atmosphere is a 100-slice pizza. Nitrogen grabs 78 slices and refuses to share. Oxygen takes 21 slices — enough to keep life burning. All the other gases? They're sharing the last single slice, fighting over crumbs. That's it. That's our atmosphere.
🔬 The Live Atmosphere Simulator
100 bouncing gas molecules — exactly as they'd appear if you could see air. Click a gas to highlight it.
Blue = N₂ · Red = O₂ · Green = Ar (the only 1% molecule shown)
🎯 The Percentage Guesser
Think you know the composition? Set the sliders and lock your answers!
📊 The Air Pie Chart
That tiny 1% slice? Click the button to zoom in and see what's hiding inside it.
💧 Why Does the Syllabus Say "DRY" Air?
🔑 Key Facts for Paper 4
Cambridge Syllabus 0620 · Topic 10.3.1 · Core Only
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