Yeast and camera: what they have in common

1. Step 1. Yeast — is material for — Bread. A raising agent that releases carbon dioxide.
2. Step 2. Bread — uses — Fermentation. Yeast dough rises through fermentation.
3. Step 3. Fermentation — is used in — Ethanol. Alcohol is produced by fermentation.
4. Step 4. Ethanol — is material for — Cloud chamber. It is saturated with alcohol or water vapour.
5. Step 5. Cloud chamber — evolved into — Bubble chamber. A liquid instead of vapour.
6. Step 6. Bubble chamber — has part — Camera. Photographing the tracks.

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