Explanation:Murmur definition, a low, continuous sound, as of a brook, the wind, or trees, ... verb murmur from Middle English murmuren, from Latin murmurāre “to mutter, ... can be distinguished only with difficulty: to mumble the answer to a question. ... Murmur also means to say something in a low tone that can't be easily understood.
Thermal energy transfers by typically moving from a warmer material to a colder material so when the student poured colder water the energy transferred THROUGH the air.
