In this activity, (on page 6 of the PDF under SciGirls Activity: Dinosaurs) learners participate in a hands-on fossil excavation. Groups of learners will receive a shoebox full off sand in which several chicken bones have been buried at various levels. After preparing string grid lines over the “dig site,” they will carefully brush away sand and record observations as each bone is discovered. Relates to linked video, DragonflyTV GPS: Dinosaurs.