| Introduction |
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5 | (7) |
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Chapter 1 The Solar Cycle: Sustaining All Other Cycles |
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12 | (25) |
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1.1 Directions from a Shadow Cast by the Midday Sun: A Measurement |
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14 | (5) |
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1.2 Checking Your North-South Line: A Measurement |
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19 | (3) |
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1.3 Find Two Cycles of the Sun by Watching Sunrise and Sunset: Observations |
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22 | (4) |
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1.4 Mapping the Sun's Path Across the Sky: An Experiment |
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26 | (3) |
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1.5 How Earth Creates the Apparent Cycles of the Sun: Models |
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29 | (5) |
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1.6 Season Cycles and the Sun: Models |
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34 | (3) |
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Chapter 2 The Carbon and Oxygen Cycles |
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37 | (18) |
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2.1 Decomposition and Carbon: A Demonstration |
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43 | (2) |
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45 | (1) |
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2.3 Photosynthesis, Leaves, and Stored Food: An Experiment |
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46 | (1) |
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2.4 Photosynthesis and Carbon Dioxide: An Author Experiment |
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47 | (3) |
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2.5 Photosynthesis and Carbon Dioxide: A Demonstration |
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50 | (2) |
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2.6 Photosynthesis and Grass in Light and Darkness: An Experiment |
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52 | (1) |
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2.7 How Plants Adapt to Receive Maximum Light: An Experiment |
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53 | (2) |
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Chapter 3 Carbon Dioxide: The Most Abundant Greenhouse Gas |
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55 | (13) |
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3.1 Carbon Dioxide: A Chemical Test |
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56 | (1) |
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3.2 Two Properties of Carbon Dioxide: An Experiment |
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57 | (2) |
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3.3 Air, Lung-Air, and Carbon Dioxide: An Experiment |
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59 | (5) |
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3.4 Preparation and Density of Carbon Dioxide: A Measurement |
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64 | (4) |
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Chapter 4 The Water, Nitrogen, and Phosphorus Cycles |
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68 | (27) |
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4.1 The Water Cycle: A Model |
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71 | (2) |
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4.2 Evaporation of Ocean Water: An Experiment |
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73 | (8) |
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4.3 What Factors Affect the Rate of Evaporation?: An Experiment |
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81 | (7) |
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4.4 Isolating Gaseous Nitrogen: A Demonstration |
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88 | (7) |
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Chapter 5 Population Cycles |
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95 | (12) |
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5.1 Population Cycle: A Model |
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97 | (4) |
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5.2 Human World Population: An Analysis |
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101 | (6) |
| Glossary |
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107 | (2) |
| Appendix: Science Supply Companies |
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109 | (1) |
| Further Reading and Internet Addresses |
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110 | (1) |
| Index |
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111 | |