The same change can be made to each of the words below to get 10 related words. Can you determine what it is?

1. PACE
2. KALE
3. SAME
4. LIES
5. SPAS
6. ALLOT
7. CANOE
8. SOFTER
9. SECTIONAL
10. REAL FORCE

(BIG) HINT:
The change involves anagrams.

Answer:

Each of the words can be anagrammed into a geographical feature:

1. CAPE
2. LAKE
3. MESA
4. ISLE
5. PASS
6. ATOLL
7. OCEAN
8. FOREST
9. COASTLINE
10. CORAL REEF 

Credit:
NPR Weekend Edition Sunday Puzzle
December 18, 2016
Will Shortz