Here's How:

• Heat 1/4 cup of applesauce in a small frying pan over low to medium heat.

• Stir in 1 packet of unflavored gelatin.

• Add a pinch or two of cocoa powder. Mix thoroughly and remove from heat.

• Sprinkle oatmeal over the mixture into an aesthetically-pleasing chunky pattern. You can stir it in a bit, but don't mix too much.

• Repeat the oatmeal procedure with some raisin bran cereal.

• Spread the barf mixture onto a plate so that it resembles vomit, adding extra raisins or cereal bits, as desired.

• Allow the barf to cool completely (couple of hours). Remove it from the plate with a spatula.

• You may wish to spray your plate with nonstick cooking spray to keep the vomit from sticking.

I didn't have any Raisin Bran and bet it would look much better with the raisins.

Chemical Reactions:

A chemical reaction occurs when two or more chemical substances are mixed together. This means that the atoms that were joined together in the original substances
break apart and rearrange themselves to make a new substance, one or more substances may be transformed into one or more new
substances. This new substance is quite different from the original substances.

Here's another fun, gross experiment we did - backwash experiment