|1. Determine 5 soil collection sites where you may obtain characteristically different soil samples. Place them in the plastic bags and label as to site.
2. Examine soil samples. For each sample, create a report that answers the following fundamental questions.
a) Where is the soil site?
b) What plants were growing on this site?
c) Was the area level or sloped?
d) Describe the soil using physical properties. ie. color, texture, odor..
e) Describe the size of the particles in each sample. Measure where applicable using the metric ruler.
3. Measure 100ml of dry soil from each sample into each beaker or jar using the graduated cylinder.
4 . Record weight of soil and beaker in a table similar to the one below.
5. Slowly pour water into the beaker until it reaches the top edge of the soil.
6. Weigh each container again and fill the remaining spaces in the table.
|WEIGHT OF SOIL + BEAKER
|WEIGHT OF SOIL, BEAKER, AND WATER
|WEIGHT OF WATER
(B - A = C)
|VOLUME OF AIR IN SAMPLE |
(1gm water displaces 1ml air)
7. Continue to add water until the level is 5cm above the soil.
8. Shake or stir the sample vigorously.
9. Allow samples to settle completely (app. 2hr.)
10. Record observations about layers.