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15.5: Sometimes [s] is Spelled < c >, Sometimes < sc >

Difficulty Level: At Grade Created by: CK-12
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Sometimes [s] is Spelled <c>, Sometimes <sc>

1. The sound [s] is spelled <s> or <ss> about eight times out of ten. The rest of the time it is usually spelled <c>.

The letter <c> spells the sound [s] only when it is followed by the letters <e>, <i>, or <y> . When the letter <c> spells the sound [s], it is called soft <c>.

2. Whenever <c> spells [s], there will be an <e>, <i>, or <y> following it. But the problem is that often [s] is spelled with an <s> with an <e>, <i>, or <y> after it, too. Read the following pairs of words aloud and look at how [s] is spelled in each of them:

sellsentserialsitesymbolcellcentcerealcitecymbal

Words like the ones in each of these pairs are called homophones. Homo- means “same,” and phone means “sound.” Homophones are two or more words that have the same sound but different meanings and spellings. Can you think of a third homophone for sent and cent and a third for site and cite?

3. Underline the letters that spell [s] is each of the following words:

per\underline{c}eivei\underline{c}ilyintrodu\underline{c}ingre\underline{c}eipt\underline{c}itizenadvan\underline{c}ing\underline{c}ertaintyprejudi\underline{c}edependen\underline{c}ebalan\underline{c}ede\underline{c}isionjui\underline{c}yemergen\underline{c}yde\underline{c}eptionconscien\underline{c}eprodu\underline{c}ese\underline{c}essionassuran\underline{c}eredu\underline{c}ei\underline{c}ycriti\underline{c}ism\underline{c}eilingac\underline{c}eleratepie\underline{c}e

4. Sort the words into these three groups:

Words with <c> followed by an ...
<e> <i> <y>
perceive conscience icily juicy
receipt produce introducing emergency
certainty assurance citizen icy
dependence reduce advancing
balance ceiling decision
secession accerlerate piece
deception prejudice criticism

5. The <sc> spelling of [s] is very rare, but it does occur in a few common words. Underline all of the different spellings of [s] in the words below:

\underline{s}u\underline{sc}eptibleab\underline{sc}e\underline{ss}\underline{sc}ent\underline{sc}ientific\underline{sc}issorsdi\underline{sc}iplinea\underline{sc}ertainconde\underline{sc}ensionde\underline{sc}enta\underline{sc}endfa\underline{sc}inatedi\underline{sc}ern\underline{sc}ien\underline{c}e\underline{sc}enic\underline{sc}ythefluore\underline{sc}ent

6. Now sort the sixteen words into these three groups:

Words in which <sc> is followed by an ...
<e> <i> <y>
susceptible descent scientific scythe
abscess ascend scissors
scent discern discipline
ascertain scenic fascinate
condescension fluorescent science

7. Four ways of spelling [s] are <s> , <ss>, <c>, and <sc>.

Teaching Notes.

Item 3. Notice that the <c> at the end of critic is hard, [k], but when the suffix -ism is added, it is soft, [s].

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Grades:
1 , 2 , 3 , 4 , 5
Date Created:
Feb 23, 2012
Last Modified:
Jul 07, 2015
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