1. peddle
2. peddler
3. pedestrian
4. pedestal
5. centipede
6. dental
7. dentist
8. dentures
9. vocalize
10. vocalist
11. vocation
12. memoir
13. memorial
14. tripod
15. podium
16. memorable
17. manager
18. manifest
19. mortal
20. mortified
Challenge words
1. impede
2. pediatrician
3. pedometer
4. mannequin
5. memorabilia