STC Program: Soils, 2nd Edition
Students gain practice in conducting tests to identify soil components, interpreting tests to draw conclusions about soils, and recording their observations. Students discover and identify different properties of sand, clay, humus, and garden soil. They apply knowledge to investigate a "mystery" soil and discover its composition. Unit Kit comes with a Teacher's Guide, a Teacher's Tools CD, and the materials needed for a class of 30. Added value: 24 KIDS DISCOVER nonfiction Readers.