Nasco Tree Growth Study Kit
Grades 6-10.
By Gari Walz.
The Nasco Tree Growth Study Kit is designed to show students the variations of different tree species by comparing the internal appearance and color of their growth patterns. The students will also learn how seasonal growth changes the appearance of layers of growth within the tree, and will find that spring wood and summer wood combine to produce annual rings. They will also learn how to estimate tree age by examining the annual rings of three different tree rounds. The kit includes three tree rounds (one each of oak, pine, and walnut), a hand magnifier, colored marking pins, a metric ruler, six reproducible student guides, one teacher guide, reproducible activity sheets, and Trees: A Golden Guide.