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Kelly Hudson (khudson@steds.org)
Student Instructions
A bivalve is a mollusk with a two-part shell, such as an oyster, clam, scallop, or mussel. A univalve is a mollusk with a one-part shell, such as a snail, conch, or whelk.
1. Click on the 
to watch the video.
2. Click 
to open the template.
3. Classify the univalves on the green plate and the bivalves on the purple plate.
4. Take a 
of the univalves on the green plate.
5. Take a of the bivalves on the purple plate.
6. Classify the shells on slide 2. Check your work.
7. Make corrections as needed.
8. Click the green 
to save.
Teacher Notes (not visible to students)
Materials purple plate (or paper) green plate (or paper) Baggie of bivalve and univalve shells for each group Make observations (firsthand or from media) to construct an evidence-based account for natural phenomena. (1-LS3-1)
