Non-stick pan and r-7 rocket: what they have in common

1. Step 1. Non-stick pan — is made of — Teflon. A Teflon coating.
2. Step 2. Teflon — is material for — Air fryer. A basket with a non-stick coating.
3. Step 3. Air fryer — works like — Oven. An air fryer is a small oven where a fan drives the hot air.
4. Step 4. Oven — uses — Combustion. Heat comes from burning wood.
5. Step 5. Combustion — uses — Oxygen. It needs oxygen.
6. Step 6. Oxygen — is material for — R-7 rocket. The oxidizer is liquid oxygen.

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