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In this activity, learners make a model of a pollution spill that occurred at Bangs Lake in Mississippi and measure water quality parameters in their model. Learners then study the actual spill,...

In this three-day lesson, learners identify two-dimensional shapes used in castle construction, create a castle collage using assorted shapes, and design tapestries using repeated patterns of color...

In this experiment, learners investigate how the size of a wing affects lift. Learners count the number of pennies an egg crate plane wing can hold until the plane will no longer fly. Learners...

In this outdoor activity and game, learners explore how animals adapt for survival through coloration, markings and camouflage. By inventing, designing and hiding their own animal models, and...

This paper describes a working-model demonstration of Ernest Rutherford's 1911 experiment about the nature of atoms. In this demonstration, a model of an atom is constructed inside a sealed...

In this activity, learners work in teams to investigate the relationship between mass, acceleration, and force as described in Newton's second law of motion. During a set of experiments,...

In this outdoor, sunny day activity, learners experiment with paper leaf models to discover how some desert plants conserve water. Learners explore adaptations of various desert plants such as waxy...

This is an activity (located on page 3 of the PDF) about diffusion of small molecules across cell membranes. Learners will use gelatin to represent a cell and dye to represent molecules to model...