Details
https://bookclubs.scholastic.ca/en/-everyone-digs-soil-4-pack-/2110659-cec-ca.htmlDescription
Take students underground to illustrate soil's important role in sustaining life on earth and keeping global warming under control.
Titles include: How Is Soil Made?, Micro Life in Soil, Soil Erosion and How to Prevent it, and Different Kinds of Soil.
Show full description