Acknowledgments
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The authors would like to thank Charles J. Moomaw, PhD, for his assistance
throughout the preparation of this book, and Peter Moomaw, PhD in physics, for
consulting on the science content of many of the activities. We are indebted to the
many children, families, and colleagues who have stimulated our interest in scien-
tific inquiry in young children. Special thanks go to the children who participated
in the photo sessions.

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