Cindy pours cool milk into a hot bowl of oatmeal and then stirs it with a room-temperature spoon. Which substance will have heat flow from it to the other substances?

Heat flows from a warmer substance to cooler substances. The oatmeal is hot, while the milk is cool and the spoon is at room temperature, so heat flows from the oatmeal to the milk and spoon. The surrounding air is not identified as warmer than the oatmeal. The correct choice is the oatmeal.

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