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Puzzled Partners
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In this web-based activity, learners try to figure out who in an online chat room has their matching puzzle piece.

Secret Writing Devices
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In this activity about encryption, learners cut out a secret decoder badge from a handout and use it to encode messages to each other.

Aerial Imagery
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This activity (on page 2 of the PDF under SciGirls Activity: Earthquakes) is a full inquiry investigation into aerial imagery.