Objective: how to make popsicles with koolaid

Which of the following solutions is more sound in terms of naive physics reasoning?

Choose from: +In a 2-quart glass measure (or a large bowl), combine the Kool-Aid, Jello powder and sugar. Add hot water and stir until completely dissolved. Stir in cold water. Pour into glasses and freeze.. +In a 2-quart glass measure (or a large bowl), combine the Kool-Aid, Jello powder and sugar. Add hot water and stir until completely dissolved. Stir in cold water. Pour into popsicle molds and freeze..
In a 2-quart glass measure (or a large bowl), combine the Kool-Aid, Jello powder and sugar. Add hot water and stir until completely dissolved. Stir in cold water. Pour into popsicle molds and freeze.