Blocks of ice and kite: what they have in common

1. Step 1. Blocks of ice — is material for — Ice house. Blocks of ice cut in winter.
2. Step 2. Ice house — uses — Heat transfer. Thick walls and earth slow down heat transfer.
3. Step 3. Heat transfer — includes — Convection. A kind of heat transfer.
4. Step 4. Convection — is used in — Hot air balloon. Hot air rises and fills the canopy.
5. Step 5. Hot air balloon — is made of — Silk. The Montgolfier balloon was fabric lined with paper.
6. Step 6. Silk — is material for — Kite. Chinese kites were silk.

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