Middle school teen girls in Mission Viejo, CA, use a chemical testing kit to determine lead content of samples of local soil in STEM (Science, Technology, Engineering and Math) class. Note boys in background using Google Chromebook laptops.

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Size: 2912px × 4368px
Location: Mission Viejo, CA
Photo credit: © Marmaduke St. John / Alamy / Afripics
License: Licensed
Model Released: No

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