Across
- 1. The largest ocean on Earth
- 5. The largest mammal
- 6. The planet known as the Red Planet
- 7. The tallest mountain in the world
- 8. The longest river in the world
- 9. The author of "Harry Potter" series
Down
- 2. The fastest land animal
- 3. The currency of the United States
- 4. The longest bone in the human body
- 7. The inventor of the light bulb
