Not Just Birds and Plants
To test porosity (and demonstrate that there is a lot of space between the various particles), the different soil types were put into tubes, and then a measured amount of water was added.
The speed at which the water penetrated the soil was one indication of porosity (for the sands it took a loooong time; clay would’ve taken even longer had someone used it). Measuring the amount of water held in the soil afterwards helps determine how much air space exists between the particles.
Next week the group is planning to head out to look for snowy owls that have come to our area for the winter in search of food. If you’d like to join us, give us a call! 782-3453.