84 TEACHING SCIENCE IN THE ELEMENTARY SCHOOL Exercise and Rest Muscles and Exercise, Sleep and Rest 193-221 Food The Sources and Uses of Food 59- 86 Growth Many Ways to Growth 248-273 Prevention of Disease How to Care for Teeth and Gums 106-127 Health Hazards in Air 175-186 Safety Safe Drinking Water 140-144 Using Light and Sound Sound, Sight, Hearing, and Speech 1- 58 Health, Happiness and Success Series Book III. Cleanliness 20- 92 Exercise and Rest 103-123 Your Habits of Elimination 194-199 Book IV. Protection of the Neighborhood 212-215 Fire Prevention 280-281 Your Work 121-129 Work, Play, Rest and Sunshine 102-103 Your Posture 107-119 Your Play, Your Rest 129-135 How to Grow Bigger and Stronger 141-150 Food Your Food and Drink 153-190 Prevention of Disease Protection Against Disease 201-214 Safety Dangerous Enemies 218-235 Care of Eyes and Ears 238-251 Safety and First Aid 271-303 Book IV. Electricity and Light 67-130 Flowers and Seeds 151-182 The Balance of Nature 183-213 Book V. Change All Around Us 67-106 Air 107-148 Conservation 213-245 Book VI. Food for Growth and Energy 7- 42 Weather and Climate 43- 82 Electricity and Its Uses 83-112 The World of Sound 131-162 Improvement of Plants and Animals 195-242 Keeping Fit for Work and Play 243-274 Pathways in Science Book I. Heat and Cold 87-116 Machines and Magnets 117-140 Garden 163-176 Book II. Changes Out-of-Doors 3- 69 Learning About Plants 71- 94 The Story of Weather 93-130 How Animals Grow Up 189-262 Book III. The Story of Plants 185-223 Waters of the Earth 237-253 Magnets and What They Do 285-300 Book IV. Social Life Among Animals: Man, Bees 121-152 The Value of Animals and Plants 231-274 Two Forces Which Man Has Put to Work 275-290 'ook V. Weather 93-110 What Are Magnetism and Electricity 111-142 Around Us 195-238