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Learners compare a life-size drawing of a Tyrannosaurus rex head and a full-size Sinornithosaurus body to understand that dinosaurs varied in size.

1 cent - $1 per group Ages 8 - 11 1 to 2 hours
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On an imaginary fossil hunt, learners "find" (remove from envelope) paper "fossils" of some unknown creature, only a few at a time.

1 cent - $1 per group Ages 8 - 18 10 to 30 minutes