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How to Make Diatoms

Overview

Diatoms are one of the main kinds of phytoplankton we found blooming in the Bering Sea. They are so beautiful, little glass houses with green gems inside. They occur in huge numbers in the Bering Sea in the initial spring ice melting algae bloom. Having one to touch and look at puts a face on what it is, a microscopic food factory that supports much of the life in one of the world’s most productive seas.

Objective

To learn more about one of the main kinds of phytoplankton found in the Bering Sea.

Materials

A clear plastic ball that can be found at most craft stores. (this is the silica house for the diatom). Often used to make christmas ornaments
Tacky Glue (will prevent your bead, foam piece, or pom from rolling down the side)
Small green pom poms, foam bits or pony beads

Activity Preparation

Discuss Bering Sea, food web, diatoms, algae blooms

Activity Description

Squeeze out small dabs of tacky glue randomly about an inch apart all over the inside of the plastic ball. Stick green, light blue, and light green beads on the dabs. Let dry. Put halves together.

Resources

n/a

Credits

Maggie Prevanas
mprevenas [at] polartrec [dot] com

Activity File(s)

application/pdf iconHow_to_make_diatoms_FINAL.pdf