ch. 5. Cholesterol and heart disease. ch. 1. Burke and Wills: across Australia -- ch. 2. Alexandra David-Neel: a French woman in Tibet -- ch. 3. Vitus Bering: across Siberia to North America -- ch. 5. Mary Kingsley: Victorian explorer -- Unit 2. World issues -- ch. 1. World population growth -- ch. 2. Changes in the family -- ch. 3. Women and change -- ch. 4. Rain forests -- ch. 5. Garbage project -- Unit 3. Mishmash (a hodgepodge) -- ch. 1. Roadrunner -- ch. 2. Afraid to fly -- ch. 3. What is jazz -- ch. 4. Skyscrapers -- ch. 5. Left-handedness -- unit 4. Science -- ch. 1. Biospheres in space -- ch. 2. Earthquakes -- ch. 3. Show and hail -- ch. 4. Photovoltaic cells: energy source of the future -- ch. 5. Biological clocks -- unit 5. Medicine and health -- ch. 1. Headaches -- ch. 2. Sleep and dreams -- ch. 3. Health care and epidemics -- ch. 4. CPR -- ch. 5. Cholesterol and heart disease.
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