Sink or Float?

Kindergarten is learning about what makes an object float or sink. We learned that the weight of an object is not the only factor that will determine whether an item will sink or float. Kindergarten learned that the shape and what an object is made of is what determines if an item will sink or float. For example a boat in the ocean is a heavy object but does not sink...why? The material and shape of it are what allow it to float. Kindergarten made a chart to keep track of their predictions of whether various object we collected would sink or float. As we went along, we put a smiley face in the float or sink column. We even took it a step further and all the children went home that night and did experiments with their parents. For Show and Tell the next day, each child brought in one item that sinks and one that floats. They had such a fun time!