Cary Ivan Sneider

Alan Gould

Skills: observing, analyzing, finding patterns; Concepts: swing rate of a pendulum, resonance, oscillating motion, superposition of motion, speed of rotation, angular momentum, magnetism, magnetic poles, electricity, batteries, generators, electrodes, electrolytes, solar energy, solar cells, series and parallel circuits, light, lens focal length, focal point, lens curvature, images, light, polarization of light, color, sound, superposition of waves, amplitude, wavelength; Themes: systems & interactions, models & simulations, patterns of change, stability, scale, energy, matter; Nature of science and mathematics: interdisciplinary, creativity & constraints, theory-based and testable, real-life applications, science and technology.

Exhibit Guide

The Wizard's Lab

Jacqueline Barber

Contains activities to test the absorbency and wet strength of four brands of paper towels. Students consider the results of the tests plus the unit cost of each brand to determine a "best buy." Provides early experiences in controlled experimentation and consumer awareness.

Teacher's Guide

Paper Towel Testing

Page Keeley

<p>What do your students know or think they know about what causes night and day, whether the Moon orbits the Earth, and why the Sun keeps glowing? Find out with this book on astronomy, the latest in NSTA s popular Uncovering Student Ideas in Science series. The 45 astronomy probes provide situations that will pique your students interest while helping you evaluate their understanding (or misunderstanding) of how the universe operates. The book is organised into four broad sections: the Earth and gravity; the Earth, Sun, and Moon system; the solar system and gravity in space; and stars, galaxies, and the universe. As the authors note, it s not always easy to help students untangle mistaken ideas. Using this powerful set of tools to identify students preconceptions is an excellent first step to helping your students achieve scientific understanding. </p>

Cary Ivan Sneider

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