Across
- 3. A colourful arc seen after rain
- 5. The planet we live on
- 7. A place where books can be borrowed
- 10. A tool used to find direction
- 12. A very large body of salt water
- 14. The star at the centre of our solar system
- 15. A prehistoric reptile that is now extinct
- 16. A very dry area with little rainfall
- 18. The tallest land animal
- 19. An instrument used to observe distant objects in space
- 22. A model of the Earth
- 23. A flightless bird that lives in cold regions
- 24. The capital city of Australia
Down
- 1. Earth's natural satellite
- 2. A large object that orbits a star
- 4. A country and continent in the Southern Hemisphere
- 6. An ancient Egyptian structure with triangular sides
- 8. A marsupial that eats eucalyptus leaves
- 9. A mountain that can erupt with lava
- 11. Australia's largest city
- 13. An Australian animal that hops
- 14. The framework of bones inside the body
- 17. The largest living land animal
- 20. A chart that shows the days, weeks, and months of the year
- 21. The largest ocean on Earth