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Unit 1 Explorers
Lesson 1 Burke and Wills: Across Australia
Lesson 2 Alexandra David-Neel: A French Woman in Tibet
Lesson 3 Vitus Bering: Across Siberia to North America
Lesson 4 Robert Scott: A Race to the South Pole
Lesson 5 Into the Deep: Ocean Exploration
Extension Activities
Video Highlights: CNN Video, Deep Sea Exploration
Activity Page: Adventure Trail
Dictionary Page: Understanding Definitions
Unit 2 World Issues
Lesson 1 World Population Growth
Lesson 2 Changes in the Family
Lesson 3 Women and Change
Lesson 4 Rain Forests 88
Lesson 5 The Garbage Project
Extension Activities
Video Highlights: CNN Video, Lalitas Story
Activity Page: Crossword Puzzle
Dictionary Page: Working with Word Forms
Unit 3 A Mishmash, or Hodgepodge
Lesson 1 Roadrunners
Lesson 2 Afraid to Fly
Lesson 3 Languages and Language Diversity
Lesson 4 Skyscrapers
Lesson 5 Left-Handedness
Extension Activities
Video Highlights: CNN Video, The Green Skyscraper
Activity Page: Familiar Phrases 165
Dictionary Page: Understanding Grammar Codes
Unit 4 Science 167
Lesson 1 Biospheres in Space 168
Lesson 2 Earthquakes 177
Lesson 3 Snow and Hail 189
Lesson 4 Photovoltaic Cells: Energy Source of the Future 198
Lesson 5 Biological Clocks 209
Extension Activities Video Highlights: CNN Video, Ozone Depletion 220
Activity Page: Chemical Crossword Puzzle 222
Dictionary Page: Doing Dictionary Research 223
Unit 5 Medicine and Health 225
Lesson 1 Headaches 226
Lesson 2 Sleep and Dreams 236
Lesson 3 Health Care and Epidemics 246
Lesson 4 Medicine: From Leeches to Lasers 258
Lesson 5 Cholesterol and Heart Disease 268
Extension Activities
Video Highlights: CNN Video, The Singing Doctor 281
Activity Page: Who Said What? 283 Dictionary Page: Learning About Word Stress 285
Unit Quiz 286
Vocabulary 310
Skills Index 313
Video Transcripts 315