Testing Your Soil (Great Project For Kids)
1. Fill a liter jar with 1/3 soil to be tested.
2. Fill the jar 2/3 with water and add 1 teaspoon of liquid dish detergent or table salt.
3. Shake the jar thoroughly and let the contents settle overnight (at the very least) or several days (for the best measurements..
4. Measure the depths of the […]