Initial Phonetic Part "sc"
"sc" has two sounds. Hard sc sounds like sk. Soft sc just says s.
scar scale scout
hard sc
scent scene science
soft sc
scare (hard)
scissors (soft)
1. (sc)um
2. scarecrow
3. scream
4. scat
5. scatter
6. scant
7. scab
8. scalp
9. scold