Curated OER
Rain that Ruins
Students participate in a series of experiments to determine how acid rain contributes to the deterioration of buildings and monuments. Using common building materials, students compare the noticeable short-term affects of distilled...
PBS
Pbs Nova Online: Be an Archaeologist
Ancient artifacts tell archaeologists a lot about the lives of prehistoric people. Sharpen your archaeological skills by reassembling broken pieces of a clay pot. See before and after photos of ruins, plus a film of a projected...