| To the Student | p. vii |
| Pretest | p. 1 |
| Pretest Answers and Evaluation Chart | p. 22 |
| Themes in Science | |
| Concepts and Processes in Science | p. 27 |
| Systems, Order, and Organization | p. 30 |
| Evidence, Models, and Explanation | p. 34 |
| Change, Constancy, and Measurement | p. 37 |
| Evolution, Equilibrium, and Entropy | p. 41 |
| Form and Function | p. 44 |
| Ged Practice: Concepts and Processes in Science Review | p. 47 |
| Comprehending and Applying Science | p. 49 |
| Comprehending Science Materials | p. 49 |
| Applying Science Concepts | p. 59 |
| Ged Practice: Comprehending and Applying Science Review | p. 65 |
| Analyzing and Evaluating Science | p. 67 |
| Analyzing Science Materials | p. 67 |
| Evaluating Science Materials | p. 81 |
| Using the Scientific Method | p. 88 |
| Ged Practice: Analyzing and Evaluating Science Review | p. 93 |
| Science and Technology | p. 95 |
| The Nature of Technology | p. 95 |
| How Technology Influences Science | p. 101 |
| Technology and Values | p. 105 |
| Concerns and Limits of Technology | p. 109 |
| Ged Practice: Science and Technology Review | p. 113 |
| Science in Personal and Social Perspectives | p. 115 |
| Personal and Community Health | p. 115 |
| Natural Resources | p. 120 |
| Population Growth | p. 124 |
| Environmental Quality | p. 129 |
| The Greenhouse Effect and Global Warming | p. 134 |
| Ged Practice: Science in Personal and Social Perspectives Review | p. 137 |
| History and Nature of Science | p. 139 |
| Science as a Human Endeavor | p. 139 |
| Historical Perspectives | p. 144 |
| Milestones in Modern Science | p. 149 |
| Ged Practice: History and Nature of Science Review | p. 153 |
| Themes in Science Writing Activities | p. 156 |
| Readings in Life Science | |
| Plant and Animal Science | p. 159 |
| Characteristics of Living Things | p. 162 |
| The Cell | p. 164 |
| Heredity | p. 171 |
| Characteristics of Simple Organisms | p. 175 |
| Characteristics of Flowering Plants | p. 182 |
| Characteristics of Animals | p. 187 |
| Animal Behavior | p. 200 |
| Communities of Living Things | p. 206 |
| The Theory of Evolution | p. 209 |
| The Fossil Record | p. 213 |
| Ged Practice: Plant and Animal Science Review | p. 217 |
| Human Biology | p. 221 |
| The Human Brain | p. 225 |
| Taking Care of Your Body | p. 229 |
| Systems of the Human Body | p. 236 |
| Reproduction and Human Genetics | p. 248 |
| Ged Practice: Human Biology Review | p. 252 |
| Life Science Writing Activities | p. 254 |
| Readings in Physical Science | |
| Chemistry | p. 257 |
| The Structure of Matter | p. 258 |
| The Chemistry of Life | p. 272 |
| Behavior of Matter | p. 276 |
| Chemical Reactions | p. 283 |
| Ged Practice: Chemistry Review | p. 287 |
| Physics | p. 289 |
| Laws of Motion | p. 292 |
| Force, Work, and Machines | p. 299 |
| Forms of Energy | p. 305 |
| Our Energy Future | p. 330 |
| Ged Practice: Physics Review | p. 333 |
| Physical Science Writing Activities | p. 336 |
| Readings in Earth and Space Science | |
| Earth Science | p. 339 |
| The Early Earth | p. 342 |
| The Earth Today | p. 345 |
| The Changing Earth | p. 361 |
| Ged Practice: Earth Science Review | p. 367 |
| Space Science | p. 369 |
| The Universe As We See It | p. 370 |
| Life and Death of Stars | p. 374 |
| Origin and Evolution of the Solar System | p. 379 |
| Origin and Evolution of the Universe | p. 381 |
| Ged Practice: Space Science Review | p. 383 |
| Earth and Space Science Writing Activities | p. 385 |
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