I can be transferred but never seen, I can warm or cool but have no mass, what am I?
Category: Science · Difficulty: hard
Hint: Think about how energy moves between objects.
Answer
A heat transfer
Explanation
Heat transfer moves energy between bodies but remains unseen, unlike chemical reactions or light emissions.
This is a hard science riddle — a tricky one that takes a little thought. The answer is A heat transfer.
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