Why do you put thermite in clay pots?

Thermite is often placed in clay pots to create a controlled environment for the intense exothermic reaction that occurs when it ignites. The clay pot can contain the reaction and help focus the heat generated, which is useful in applications like welding or metal cutting. Additionally, the pot can help prevent splattering of molten material, promoting safety during the reaction. Overall, using a clay pot maximizes the effectiveness and safety of the thermite reaction.