Models, Analogues and Simulations

I am still a little confused as to how an analogue and model are different, but I'll take a stab at it. A model is something physical that you make to represent something else-and it is usually made to look like a smaller version of the real thing. An analogue is like a model in that it is representing something, but it uses different components than the real thing (i.e. like an analogy for something.) A simulation is the actual process of imitation. For instance, we simulated making different kinds of rocks in class: sedementary, metamorphic and igneous.
My group made rice krispy treats, which were analogous of sedementary rocks because there you could see the "sediments" (i.e. the puffed  rice) in the final product.The peanut brittle and sea foam I think are both analagous of igneous rocks because in order to get the final "rock" product, we had to melt the candy & then let it cool-just like igneous rocks.Although we didn't make butterfingers in class, we got to bite into one lengthwise and then observe what we saw. I think you were trying to show us how there are many different platey layers that look like they were fused together -analagous of a metamorphic rock formation.

Mixtures and Bonding

A mixture is two or more substances which have been combined such that each substance retains its own chemical identity. An example of this that we did in class is the cornstarch and water mixture. These elements did not change. You can also draw out your original ingredients easily(-ie they will eventually turn back into cornstarch and water.)

A bond is different in that it is two or more substances that when combined create a new substance (with new chemical makeup). We did this experiment when we mixed the water, glue and borax soap solution that made a chemical bond called a polymer. Also you cannot draw out the original ingredients because they have already reacted chemically (unless you chemically pull them apart).