What is a good archaeology science project?

Dr. dig responds:

One simple experiment involved making a flower pot rot by letting it soak up a salt water solution and allowing it to dry out again and again for about three weeks. This test shows how pottery objects decay over time due to salt and mineral crystalization. After about three weeks, you will begin to notice that the surface of the pot has begun to flake off. Your experiment will involve discussing the effect of salt water on certain artifacts discovered by underwater archaeologists.

Soil science. Make a burlese funnel to show that soil is full of life. This easy experiment involves a light, some rich soil, a sieve, and a bowl. Micro-organisms and bugs are a major factor in the survival of archaeological artifacts. Just how well artifacts survive depends to a great extent on the soil in which they were buried.