Contents                                                                                                v

            Common Safety Regulations                                                 viii

            Signature Page                                                                                   xiii

            Chemistry

                   Investigation        1     Alchemy                                                         1                  

                   Investigation        2     Density Layers                                                9

                   Investigation        3     Energy in Physical and Chemical Changes      17

                   Investigation        4     Separation of a Mixture                                 25

            Atoms

                   Investigation        5     Conservation of Mass                                   33

                   Investigation        6     Laws of Definite and Multiple Proportions     41

                   Investigation        7     Periodicity                                                    51

            Atomic Structure

                   Investigation        8     Atoms and Light                                           61      

                   Investigation        9     Flame Tests and Analysis                              69

            Chemical Bonds

                   Investigation      10     Ionic vs. Covalent                                         79

                   Investigation      11     Iron(II) and Iron(III) Ions                              87

            Chemical Accounting

                   Investigation      12     Chemical Reactions                                       95

                   Investigation      13     Double Replacement Reactions                   103

                   Investigation      14     Mole Relationships                                      111

                   Investigation    15 Molar Volume of a Gas                                      119

                   Investigation    16 Hydrated Compounds                                       127

            Gases, Liquids, Solids, and Intermolecular Forces

                   Investigation      17     Solubility                                                     137

                   Investigation      18     Viscosity                                                     145                                           Investigation            19   Gas Laws       155

                   Investigation      20     Diffusion and Graham’s Law                       165

            Acids and Bases

                   Investigation      21     Acid Neutralization by Antacid                    173      

                   Investigation      22     Nature’s Indicators                                     181

                   Investigation      23     pH and Flammability of Household

                                                            Products                                              189

                   Investigation      24     Buffers                                                        197

            Oxidation and Reduction

                   Investigation      25     Oxidation and Reduction                             207

                   Investigation      26     Single Replacement Reactions                     215                  

                   Investigation      27     Silver Tarnish Removal                                222

            Organic Chemistry

                   Investigation      28     Organic Qual Scheme                                 233

                   Investigation      29     Synthesis of Esters                                      243

            Polymers

                   Investigation      30     Polymers                                                    253

                   Investigation      31     Polymer Properties                                     263

            Nuclear Chemistry

                   Investigation      32     Nuclear Radiation                                       271

                   Investigation      33     Radioactive Half-Life                                  279

            Chemistry of the Earth

                   Investigation      34     Salt on Ice                                                  287

                   Investigation      35     Copper Cycle                                             295

            Air

                   Investigation      36     O₂ and CO₂ in Breath and Air                     305

                   Investigation      37     Solids in Smoke                                          315

            Water

                   Investigation      38     Clarification of Water                                  325      

                   Investigation      39     Freezing Water                                           333      

                   Investigation      40     Freezing Point Depression                           341

                   Investigation      41     Heat Capacity                                             349

            Energy

                   Investigation      42     Heat of Reaction                                         357      

                   Investigation      43     Rates of Chemical Reactions                       365      

                   Investigation      44     Canned Fuel and Evaporation                     371      

                   Investigation      45     Batteries                                                     379

            Biochemistry

                   Investigation      46     Test for Vitamin C                                      387      

                   Investigation      47     Proteins                                                      397      

                   Investigation      48     Enzymes                                                     407

                   Investigation      49     Forensic Chemistry                                     417

            Food                                

                   Investigation      50     Protein in Milk and Other Foods                 425      

                   Investigation      51     Production of Carbon Dioxide                     433      

                   Investigation      52     Paper Chromatography of Food Colors      445

            Drugs

                   Investigation      53     Testing for Opiates                                      455

                   Investigation      54     Testing for Caffeine                                     463

            Fitness and Health

                   Investigation      55     Aspirin Preparation and Purity Test             473      

                   Investigation      56     Fats and Iodine Number                             483

                   Investigation      57     Carbohydrates                                            491

            Chemistry on the Farm and in the Garden

                   Investigation      58     Analysis of Fertilizer                                    499

                   Investigation      59     Soil Chemistry                                            509

            Household Chemicals

                   Investigation      60     Saponification                                             521      

                   Investigation      61     Soap in Hard Water                                    529

                   Investigation      62     Personal Products                                       537

                   Investigation      63     Hair Chemistry                                            545

                   Investigation      64     Testing Sunscreens                                      553

            Poisons

                   Investigation      65     Lead Detection                                           561      

                   Investigation      66     Parts per Million                                         571

            Appendices

                   I. Common Laboratory Apparatus                                                579      

                   II. Common Laboratory Techniques                                             583      

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