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School equipment with word STEM Education over pink background in education STEM concept. School desk with stationery tools for STEM learning.
STEM or DIY Electronic Kit , Line tracking robot competition ideas. closeup.
Doodle of STEM education background. Doodle set of Science Technology Engineering Mathematics. STEM education concept with drawing background. Hand holding STEM with doodle education background.
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A Petri dish, named after the German bacteriologist Julius Richard Petri, is a shallow cylindrical glass or plastic lidded dish that biologists use to culture cells.

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