Grow mold, germinate seeds, observe objects with a magnifying glass, or trap a bug. Hundred of uses with these deep set plastic petri dishes! The Petri dish 4-pack is a great addition to the Science Accessory portion of your Science Center. Each pack includes 4 empty petri dishes, 100mm x 25mm. Sold as 2 packs for a total of 8 petri dishes.
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