Across
- 3. a man that fights in war
- 7. the study of why things happen
- 8. a car made of metal, with a cannon
- 10. the study of the place we live
- 12. the study of numbers
Down
- 1. the study of people
- 2. a lot of soldiers
- 4. soldiers kill people with this
- 5. the study of things long time ago.
- 6. the study of sports
- 9. where a lot of people fight
- 11. when everyone is happy and no war