Across
- 1. A senior military officer.
- 4. Willing to give or share with others.
- 6. A serious situation requiring immediate help.
- 9. A gas and the first element on the periodic table.
- 10. Very much larger than normal.
Down
- 2. Full of energy and enthusiasm.
- 3. The study of the Earth's features and countries.
- 5. A branch of mathematics involving shapes and space.
- 7. The study of rocks, minerals and the Earth.
- 8. A sport involving tumbling, balancing and routines.