Pizza as the Earths Crust

The dough or crust is a representative of the mantle, this holds up the earth. Next layer is the asthenoshere, this is represented by the sauce of the pizza. It allows the crust to slide. The Oceanic crust is represented by the cheese. Finally we have the continental crust, that is represented by the toppings. It is the top layer.
YUMM!

Story of a Rock

Long ago there was a magma flow, it was a a nice magma flow, it flowed fast red and hot. However one day the flow started to slow as the tectonic plates shifted back together. It was a shame to loose such a nice magma flow, but out of it came something even more awesome. Out of the magma came Marty the extrusive Igneous rock. He was a nice rock. Because he was on the surface of the earth he cooled very fast and as it cooled a lot of gas escaped and thus he formed a very porous rock with small crystals. Marty sat on the side of the volcano for years. Scientist Steve came by and would look at Marty. But after years and years of sitting on the hill side he was beaten and whipped by wind and rain. Marty didn't mind it too much, because he looked forward to being transformed. The transformation we speak of is the slow process of being chemically transformed into a wonderful Sedimentary rock!

Simulations, Models, & Analyses

Simulation of Igneous Rocks
Heath bars can simulate Igneous rocks. The inside candy has very small crystal size so that makes it a extrusive formation.
Peanut brittle, fudge, and sea form candy are other examples that could be used in a class

Simulation of Sedimentary Rocks
Rice Krispise are a great example of a Detritial sedimentary rock. They are made up of bits and pieces and held together by the marshmallow.
The other form of Sedimentary rock would be chemical sedimentary.

Simulation of Metamorphic Rocks
Butterfingers are a great examples of a metamorphic rock, in specific it is a schist which is a type of Folicated schist. Meaning that you can see the bands of minerals.
Anything that goes through a heat and pressure change would be a good example to use for this.