Lab tools are used to make colorful cupcakes and measure ingredients. A dropper is used to add food coloring to cake mixtures. A thermometer measures temperature and can be used to check if someone has a fever. A balance measures weight and can measure how much sugar to add to cake batter. Making jelly requires using different tools - a balance to measure powder, a thermometer to check liquid temperature, a dropper to add food coloring, and following steps of mixing, cooling, and molding the jelly.