Many of the processes involved in breaking down the food you eat so that your body can use it are chemical reactions. One class of enzymes is the proteases. The name protease means that these enzymes break down proteins into the protein building blocks that are called amino acids. Jell-Od is mostly a protein called gelatin. The rest is sugars, flavors and coloring.
Some fruits contain proteases.
When the fruit is added to the set Jell-Od, we can observe the effects of the proteases on gelatin. Prepare the Jell-Od according to the package directions. Pour it into the small cups to a depth of about 2 inches. Record your observations about the appearance of the Jell-Od in the results table below. Pick 2-3 different kinds of fruit that you want to investigate.