Here’s the soil image of the day. Dust blows across the Persian Gulf in this NASA SeaWiFS image.
Plant pH Guide
A list of plants and their optimal soil pH ranges.
Soil Characterization Field Guide
Soil in the News
- The Hidden World Under Our Feet, New York Times. Soil as a foundation of biodiversity is a shrinking natural resource.
Cloud Identification Chart
- This Chart contains descriptions and images of ten of the most common cloud types. Download the jpg file.
- This Cloud Chart only shows the three main cloud types (cumulus, stratus, cirrus). Great for younger students. Download the pdf.