1: How did Earth and other planets form?
2: What happened during Earth's "Dark Age," or the first 500 million years after it formed?
3: How did life begin?
4: How does Earth's interior work, and how does it affect the surface?
5: Why does Earth have plate tectonics and continents?
6: How are Earth processes controlled by material properties?
7: What causes climate to change – and how much can it change?
8: How has life shaped Earth – and how has Earth shaped life?
9: Can earthquakes, volcanic eruptions and their consequences be predicted?
10: How do fluid flow and transport affect the human environment?
