$4.00
Exploring shells encourages curiosity, enhances observation skills, and promotes learning about natural materials and marine life.
Identify, sort, and classify the shells into univalves and bivalves, then use the control chart to verify the classification.
This set include 12 univalves & 12 bivalves:
Cards are approx. 3¼" x 2½".
This file is in PDF format.