Across
- 2. The study of places, people and the environment
- 4. The study of the physics of the Earth and its environment in space
- 5. A branch of mathematics
- 6. The study of the effects of Earth's geography on politics and international relations
- 7. A branch of science relating to the Earths magnetic field
Down
- 1. Scientists who study the Earth
- 3. A hollow, spherical rock
- 4. To study the Earth
- 5. Heat energy from the Earth
- 6. A branch of science involving chemical change