Includes bibliographical references and index.

What can make a ball roll faster? Does the temperature of wood affect the heat of a fire? How can old-fashioned tin can telephones teach today’s students about sound and technology? By presenting everyday mysteries like these, this book will motivate your students to carry out hands-on science investigations and actually care about the results. The 2 1 open-ended mysteries focus exclusively on physical science, including motion, friction, temperature, forces, and sound. The stories come with lists of science concepts to explore, grade-appropriate strategies for using them, and explanations of how the lessons align with national standards. They also relieve you of the tiring work of designing inquiry lessons from scratch.

Chapter 1: Theory Behind the Book
Chapter 2: Using the Book and the Stories
Chapter 3: Using This Book in Different Ways
Chapter 4: Science and Literacy

The Stories and Background Materials for Teachers

Chapter 5: Grandfather’s Clock (Physics: periodic motion and experimental design)
Chapter 6: The Crooked Swing (Physics: engineering application of pendulums, improving a product)
Chapter 7: The Magic Balloon (Physics: gas and temperature laws)
Chapter 8: Bocce, Anyone? (Physics: moving bodies and ramps)
Chapter 9: Cooling Off (Physics: mixing different temperature liquids)
Chapter 10: Warm Clothes (Physics: temperature vs. heat)
Chapter 11: Party Meltdown (Physics: heat transfer: conduction)
Chapter 12: How Cold Is Cold? (Physics: thermodynamics with ice)
Chapter 13: Dancing Popcorn (Physics: density and buoyancy)
Chapter 14: Color Thieves (Physics: light, vision, color)
Chapter 15: A Mirror Big Enough (Physics: vision, reflection, mirrors)
Chapter 16: Stuck! (Physics: static and dynamic friction)
Chapter 17: St. Bernard Puppy (Physics: pressure, weight, mass)
Chapter 18: Iced Tea (Chemistry: dissolving, solutions and temperature)
Chapter 19: Pasta in a Hurry (Chemistry: effect of salt on boiling temperature)
Chapter 20: The Magnet Derby (Physics: testing magnet strength)
Chapter 21: The Cookie Dilemma (Chemistry: testing for chemicals)
Chapter 22: Sweet Talk (Chemistry: differences between melting and dissolving)
Chapter 23: The Slippery Glass (Weather: condensation and humidity)
Chapter 24: Florida Cars (Chemistry: rusting and chemical reactions)
Chapter 25: The Neighborhood Telephone System (Physics and engineering: sound and improving a product)
Index