4. When the groups have completed sorting the objects, select one card and ask each group to describe how they categorized it. What characteristics does it share with the others in that category? Could the object fit into more than one category they have created?
5. Different groups will categorize the same object differently. Discuss the differences between the group’s categories.
6. Explain how scientists carefully observe new discoveries and apply their knowledge of existing objects to help understand and describe what they have found.