how does the inside of an igloo keep from melting?

Question

i read the inside of an igloo can get quite toasty. since it’s warmer than freezing, much warmer, wouldn’t the inside ice melt?

In: 75

Answer 1

Here’s how it works:

* The snow blocks are **compacted** and **cut** into a **spiral** **shape** that makes the igloo strong and stable.

* The snow blocks act as **insulators**, which means they **trap heat** inside the igloo and **block cold** from outside.

* The air inside the igloo is also an **insulator**, because it is **still** and **unmoving**. It helps to keep the heat from escaping through the snow walls.

* The igloo has a **small entrance** and a **raised sleeping platform**. This creates a **cold trap**, which means the cold air sinks to the bottom of the igloo and the warm air rises to the top.

* The igloo has a **ventilation hole** at the top, which allows some of the warm air and moisture to escape. This prevents the igloo from getting too hot and humid, which could cause the snow to melt.