What are the 3 primary ways heat is lost in an igloo?, evaporation, melting, freezing, convection, conduction, radiation, absorption, reflection, transmission, friction, pressure, vibration, Why does snow insulate better than solid ice?, snow melts faster, snow is 95% trapped air bubbles, snow is denser, snow reflects light better, What makes the dome shape ideal?, catenary arch for stable pressure distribution , it's the easiest to build, maximizes wind resistance, allows more light inside, Why is the entrance lower than the floor?, to store food, creates a cold sink for dense cold air , easier to dig, traps animals, How does body heat contribute?, melts walls completely, only warms the floor, generates fire, radiates, circulates by convection, melts inner layers for seal, Which snow type is the best for igloos?, fresh powdery snow, wet slush, wind blown, compactable snow, any snow works equally, How much warmer can an igloo get inside?, 22-33°C above outside, 5-10°C above outside, same as outside, hotter than a tent, What happens to igloo walls over time?, melt inside, refreeze stronger and more airtight, they weaken, grow thicker, turn to ice.

Igloo quiz

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