Uncovering the Past
Two girls scrape dirt from an area where a house once stood. Bit by bit, they ÿ ll a bucket. A boy takes the bucket and pours the dirt onto a wooden frame lined with a metal screen. Another middle schooler shakes the sifter back and forth. ° e dirt falls away. ° e student picks through rocks and sticks, until she ÿ nds a round, dirt-encrusted object. It looks as if it might be glass, so she adds it to the bag that holds glass artifacts.
When the bag is full, another group of middle schoolers empties it and sorts through the objects. A boy lifts the
