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In this activity, learners collect, analyze, and interpret information about objects in order to classify them into a cladogram. Use this activity to talk about how scientists classify things.

In this activity, learners are challenged to design a planktonic organism that will neither float like a cork nor sink like a stone.

In this interactive activity, learners analyze seashells to explore phylogeny and evolution. Learners identify similar and dissimilar seashells to create a phylogenetic tree.

In this activity, learners will first learn the basics of galaxy classification and grouping.

In this activity, learners try to figure out who has their matching rock type by reading a description of their rock (no talking!).

In this laboratory exercise, learners will discover how many different plant hosts they can find that are infected by the same genus of a powdery mildew fungus, or how many different genera of powdery

In this activity, learners are divided into teams.

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