Stir until the gelatin is dissolved. Sink straws into the mixture so they will fill up with the gelatin. Place jars on top of the straws if the straws float. Place the chilled straws on a cutting board, and using a rolling pin, gently push and squish the worms out of the straws. A colloid is when you evenly distribute bits of one substance through another.
Gelatin floats water droplets in a protein.
Fog floats water droplets in air. Whipped cream floats gas in cream. Mayonnaise floats oil in vinegar.