Show students the soil testing kits. Form cooperative groups of two students each. Have each collector obtain a sample of soil from random parts of the garden area and test in class. With buckets, have student collectors get larger samples of soil from garden. Closely examine contents of bucket with partner.
Recorders make list of everything found.
Reading on carbon dating process. Describe ways in which humans alter the environment. Write down your reasons in journal. Using lumber and shovels, grade the garden fairly flat, and place the landscape ties around border. Have volunteers create their versions of garden overhead drawings on the board.