xvi Features STEM STEM Link Link Science The Scientific Method ................................................................................................. 10 Chemical Symbols ................................................................................................... 129 Monitoring Carbon Dioxide Levels .............................................................................. 242 Sports and Levers .................................................................................................... 348 Newton’s Third Law of Motion .................................................................................... 386 Vibrations and Sound ............................................................................................... 406 Lemon Cell ............................................................................................................. 453 Testing Conductivity ................................................................................................. 472 Hydraulic Pressure ................................................................................................... 529 STEM STEM Link Link Technology Art, Nature, and Technology ........................................................................................ 46 Identifying Reliable Research ...................................................................................... 80 Designing a Logo ......................................................................................................117 Game Design .......................................................................................................... 170 Assistive Robotics .................................................................................................... 543 STEM STEM Link Link Engineering Material Fatigue ....................................................................................................... 127 Testing Truss Strength .............................................................................................. 290 Testing Waterwheels ................................................................................................ 384 STEM STEM Link Link Math Anthropometric Data .................................................................................................. 53 Circumference of Circles ........................................................................................... 109 Graphing Melting Points of Metals.............................................................................. 140 Using Mixed Fractions to Calculate Material Needed .................................................... 179 Calculating Material Needed ..................................................................................... 213