Across
- 3. The chemical element K
- 6. A cascade of water on a river
- 11. Symbolic birds representing love and peace
- 12. Volcano that is inactive but may erupt in the future
- 13. Last name of President "Teddy"
- 16. Historically important vegetable in Ireland
- 17. Galaxy containing our solar system
- 18. Position between second and third base
Down
- 1. Group of stars forming a recognizable pattern
- 2. Sixth planet from the sun
- 4. A freshwater wetland that has trees and shrubs growing in it
- 5. Fat layer that keeps some marine animals warm
- 7. Number of original colonies that declared independence
- 8. Dense cloud of tiny water droplets that forms near the ground
- 9. Capital of Rhode Island
- 10. Bus passenger whose actions inspired MLK
- 14. Antonym for odd
- 15. Matter with no defined volume or shape