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CHAPTER 1 Nature’s Hot Tub 4 CHAPTER 2 Small Stream Big Effect 10 CHAPTER 3 Hot Springs and a Volcano 14 CHAPTER 4 Visitors and the Climate 24 Making Connections 30 Glossary 31 Index 32 Online Resources 32 TABLE OF CONTENTS
CHAPTER 1 NATURE’S HOT TUB Steam rises from an area where two rivers meet Hikers walk carefully into the water One person thinks the water is too warm A little farther away another person thinks the water is too cold WATCH A VIDEO HERE
They meet in the middle The water temperature there is perfect People of all ages visit the natural hot tub in Yellowstone National Park
