Listed in the Item Bank are some key terms and expressions associated with the categories seen in the Venn Diagram. To find out more information about items, some have more details available when you click on them. Drag and drop each item onto the proper area of the diagram. If an item describes more than one category, be sure to place it in the overlapping space. ITEM BANK: Move to Bottom establishes how many years ago a given event took place important method for geologist slaw of superposition places historical events in their correct order radioactive decay used on rock strata