Understanding Igloos and Their Warmth

What material is primarily used to build an igloo?

• Metal sheets

• Snow with interlocked ice crystals

• Wood

• Frozen blocks of ice

How does the entrance of an igloo help in maintaining warmth?

• It is sealed with ice

• It is covered with a door

• It is heated with a small fire

• It is at a right angle to block direct cold wind

What role does body heat play in an igloo?

• It melts the snow

• It is absorbed by the snow

• It escapes through the entrance

• It circulates and is insulated within the igloo

Why is compressed snow a good insulator in an igloo?

• It reflects sunlight

• It is waterproof

• It is dense and heavy

• It traps heat effectively

What is the purpose of having multiple levels inside an igloo?

• To separate living and sleeping areas

• To allow for better air circulation

• To create more space

• To enhance warmth by allowing heated air to rise