This isn't for school or anything, but rather it was the first thought on my mind when I woke up. What other material turns solid when heat is applied besides eggs? The closest answer I heard was some sort of epoxy, but even with that doesn't it just need exposure to air?
i really dont know what to tell you. clay has varying degrees of water in it (slip>greenware) but when heat is applied it becomes a definite solid, as a greenware pot will break down in water. an egg too has water content. i think your query is too broad. needs more context. im sure there are more things that are heat-set, but i am too lazy to continue thinking. my head is full of pie.
This is waaaaay tooo broad. Just think about cooking. Any sort of batter such as pancakes or cupcakes or muffins. Many things that are OVERCOOKED can turn from liquid to solid, such as soups.
corn starch .. https://www.youtube.com/watch?v=f2XQ97XHjVw"]YouTube - A pool filled with non-newtonian fluid
ugh. i hate corn starch. my kid dumped a box of it all over the kitchen, and it doesnt clean up well. at all. and reduced me to tears of frustration.
any highly concentrated PROTEIN solution should behave like eggs (the protein here is albumin) when heated.
"eggs" has a lot of different chemicals in them, my guess is that the change happens because of certain reactions happening, catalyzed by the heat, and/or chemicals with low boiling points evaporating.
^^^it's the albumin (protein) denaturing (unfolding) that causes it to congeal like that. proteins unfold at high temperature