Remediation and Controlled Experiment:


To test our knowledge of soil, we had to figure out what our soil sample needed and add whatever it was. After we did that, we compared the growth of lettuce seeds in the remediated soil to the growth of lettuce seeds in a control cup. To remediate the soil, I added to 53 grams of dirt: 20 ml of sand (in a beaker) to increase drainage and 75 ml of mushroom fertilizer (in a beaker) to increase nitrogen, potassium, and phosphorus levels. Then we planted ten lettuce seeds in each, and watered them with 50 ml of water every few days until the end of the growing period. Here is the process and the results:

Original dirt

One control, one remediated

Seeds planted and beginning to grow. Remediated on top.

Growth near end. Remediated on left.

Remediated lettuce seedlings

Control seedlings