Search Results

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

In this activity (on pages 2-8), learners experience how scientists use classification in their study of animals.

In this activity, learners solidify their conceptualization of cells by building a model of a cell in a ziplock bag.

In this activity, learners investigate the touch sensory system and discover how to plan and carry out their own experiments.