Order the speed of sound through these materials from the slowest to the fastest.

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Source
-speed of sound in cold air
-speed of sound in hot molten lead
-speed of sound in water
-speed of sound in warm air
-speed of sound in steel

Target

1. speed of sound in hot molten lead

2. speed of sound in steel
3. speed of sound in water
4. speed of sound in warm air
5. speed of sound in cold air