Across
- 2. The capital of Germany
- 4. The process by which plants make their own food
- 7. The molten rock beneath Earth’s surface
- 8. The language with the most native speakers in the world
- 10. A triangle with all sides equal
- 12. The line dividing Earth into Northern and Southern Hemispheres
- 13. The fastest land animal
- 15. The scientific name for human beings
- 17. The smallest unit of an element
Down
- 1. A system of stars forming a recognizable pattern
- 3. The largest continent
- 5. An animal that eats both plants and meat
- 6. Largest ocean in the world
- 9. What bats use to "see"
- 10. Tallest mountain in the world
- 11. The "ship" of the desert
- 14. Smallest prime number that's not 1
- 16. A system in which goods are exchanged without money