The transfer of heat through a fluid is called:

## The reasoning Heat travels through materials in three main ways. **Convection** is the transfer of heat specifically through fluids (liquids and gases) by the actual *movement* of the fluid itself. Picture this: When you boil water, the hot water at the bottom becomes less dense and rises, while cooler water sinks to replace it. This creates a circulation pattern called a **convection current**. The fluid carries the heat energy with it as it moves — that's convection. ## Why the wrong options tempt you **Conduction** sounds right because it also transfers heat, but it works through *direct contact* in solids (like a metal spoon heating up). **Radiation** transfers heat through *electromagnetic waves* without needing any material at all (like the sun warming your skin). **Induction** isn't even a heat transfer method — it's related to electricity and magnetism, thrown in to confuse you! ## Quick takeaway **Convection = fluid movement carries heat; think "current" in liquids and gases.**