Liquid Rocks and Where to Find Them

Summer in Illinois can feel unbearably hot, but how hot is that exactly?  At 80ºF, Illinoisans can be found enjoying the sunshine and the reprieve from our winters.  At 100ºF, Chicagoans complain incessantly as cautionary heat warnings show up on billboards.  But what about, 200ºF?  Or 1000ºF?  These are the real extreme temperatures, and they are so hot that they literally melt rocks.  Believe it or not, parts of our very own planet heat up to these temperatures.  Continue reading “Liquid Rocks and Where to Find Them”