The Sciences

1. Science: A Way of Knowing: How do you know what you know? 2. The Ordered Universe: Why do planets appear to wander slowly across the sky? 3. Energy: Why must animals eat to stay alive? 4. Heat and the Second Law of Thermodynamics: Why is it easier to make an omelet from an egg than to make an egg from an omelet? 5. Electricity and Magnetism: What is lightning? 6. Waves and Electromagnetic Radiation: What is color? 7. Albert Einstein and the Theory of Relativity: Can a human ever travel faster than the speed of light, at "warp speed"? 8. The Atom: Why are there so many different materials in the world? 9. Quantum Mechanics: How can the electron behave like both a particle and a wave? 10. Atoms in Combination: The Chemical Bond: How does blood clot? 11. Materials and Their Properties: How have computers gotten so much faster? 12. The Nucleus of the Atom: How do scientists determine the age of the oldest human fossils? 13. The Ultimate Structure of Matter: How can antimatter be used to probe the human brain? 14. The Stars: How much longer can the Sun sustain life on Earth? 15. Cosmology: Will the universe end? 16. Earth and Other Planets: Is Earth the only planet with life? 17. Plate Tectonics: Can we predict destructive earthquakes? 18. Earth's Many Cycles: Will we ever run out of fresh water? 19. Ecology, Ecosystems, and the Environment: Are human activities affecting the global environment? 20. Strategies of Life: What is life? 21. The Living Cell: What is the smallest living thing? 22. Molecules of Life: What constitutes a healthy diet? 23. Classical and Modern Genetics: Why do offspring resemble their parents? 24. The New Science of Life: Can we cure cancer? 25. Evolution: How did life emerge on the ancient Earth?