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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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This activity guide features three related explorations to help learners ages 3-6 investigate shadows via the following science concepts: A shadow is made when an object blocks the light; you can chan

$5 - $10 per group Ages 4 - 6 45 to 60 minutes