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Get all wrapped up in a lesson about skin!

In this creative outdoor activity, learners invent populations of make-believe organisms and then investigate real populations living in the activity site.

In this activity, learners create a model using metric measuring tapes and atmosphere composition data.

In this activity, learners explore how molecules must fit together, like a lock and key, in order to identify each other and initiate a new function as a combined unit.

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

In this outdoor water activity, learners explore how to change the direction of water flow. Learners make puddles in dirt or use existing puddles and sticks to make water flow.

In this activity (on pages 20-23 of PDF), learners build a model of a power plant using simple materials.