Our Preschoolers are using their pincer grasp to hold and squeeze the droppers. Each child has baking soda in the ice cube tray and vinegar in the jars. The children used the droppers to drip vinegar and mix it with the baking soda. It was really exciting to see the chemical reaction by mixing vinegar and baking soda. They could control how much of a reaction they saw depending on how much vinegar they dripped in.
