Meeting butter for popcorn is physical or chemical?

Melting butter for popcorn is a physical change.

When butter is melted, the solid butter turns into a liquid. This is a physical change because the chemical composition of the butter does not change. The molecules of butter are still the same, they are just arranged differently in a liquid state than they are in a solid state.

A chemical change, on the other hand, occurs when the chemical composition of a substance changes. This can happen when two or more substances react with each other to form new substances. For example, when you burn wood, the wood reacts with oxygen to form carbon dioxide and water. This is a chemical change because the chemical composition of the wood has changed.