Is a hamburger sizzles on frying pan an example of convection?

No, a hamburger sizzling on a frying pan is not an example of convection. Here's why:

* Convection is the transfer of heat through the movement of fluids (liquids or gases). The hot pan heats the air directly above it, and that hot air rises, carrying heat away from the pan.

* What's happening with the hamburger is conduction: The heat from the pan directly transfers to the hamburger through contact. The hot pan molecules vibrate and transfer this energy to the hamburger's molecules, making them vibrate faster and raising the temperature of the burger.

Here's a simple way to remember the difference:

* Convection: Heat travels through movement of a fluid. (Think of hot air rising, like in a hot air balloon).

* Conduction: Heat travels through direct contact between objects. (Think of a metal spoon getting hot when you stir a pot of soup).

While convection plays a role in cooking (like the oven circulating hot air), it's not the primary heat transfer method when a hamburger is sizzling on a frying pan.