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Paint by the Numbers
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In this pencil and paper activity, learners work in pairs and simulate how astronomical spacecraft and computers create images of objects in space.

Destination Tidepool
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In this activity (page 7 of pdf), learners research tide pool ecosystems, and then create brochures that "advertise" these environments.

A-Mazing Robot
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This activity lets you program your 'robot' (a willing friend) to pick up and dispose of some 'toxic waste' using as few commands as possible.

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.