Across
- 2. - A large landform that rises above its surroundings.
- 4. - A low area of land between hills or mountains.
- 6. - A natural flowing watercourse.
- 7. - A colorful plant part that produces seeds.
- 11. - A colorful arc in the sky caused by sunlight and rain.
- 12. - A natural underground hollow or passage.
- 15. - A large landform that rises above its surroundings.
- 16. - A tall plant with a trunk and branches.
- 17. - A vast body of saltwater that covers most of the Earth's surface.
Down
- 1. - An insect with colorful wings that undergoes metamorphosis.
- 3. - A large body of water surrounded by land.
- 5. - A warm-blooded vertebrate that has feathers and can fly.
- 8. - A cascade of water falling from a height.
- 9. - The star at the center of our solar system.
- 10. - A large area covered with trees and plants.
- 11. - A solid mineral material forming part of the Earth's crust.
- 12. - A visible mass of condensed water vapor in the atmosphere.
- 13. - A small body of still water.
- 14. - A sandy or pebbly area by the seaside.
- 15. - Earth's natural satellite that orbits around it.