Sink or Float

Materials: Large container filled with water, Let children choose items from around the classroom  

Have child choose one object at a time. Do you think it will sink or float? Why?  Have child place the object in the water and observe what happens. (Optional: Record the result on the recording sheet. You can have child draw a picture or write the name of the object or model writing and drawing the object yourself.) Repeat this for all the objects. Why do you think some objects floated and some sank? Is there anything the same about the objects that floated? How about with the objects that sank?