Identify prefixes and suffixes added to root words in this educational worksheet.

Let's solve the problem step by step.

We are given a list of words, and we need to identify the prefix and suffix added to each root word. A prefix is added at the beginning of a word, and a suffix is added at the end.

Here’s the list of words:

1. uninterested
2. unlike
3. encouragement
4. disgraceful
5. unreasonable
6. reusable
7. incredibly
8. unhappy
9. irreducible
10. unfriendly

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Step-by-step analysis:

#### 1. uninterested
- Root word: interested
- Prefix: un- (means "not")
- Suffix: none (no suffix added)
- ✔ Prefix: un-, Suffix: - (none)

#### 2. unlike
- Root word: like
- Prefix: un- (means "not")
- Suffix: none
- ✔ Prefix: un-, Suffix: -

#### 3. encouragement
- Root word: encourage
- Prefix: en- (a common prefix meaning "to cause" or "to put into")
- Suffix: -ment (forms nouns, often indicating action or result)
- ✔ Prefix: en-, Suffix: -ment

#### 4. disgraceful
- Root word: grace
- Prefix: dis- (means "not" or "opposite of")
- Suffix: -ful (means "full of", e.g., graceful = full of grace)
- ✔ Prefix: dis-, Suffix: -ful

#### 5. unreasonable
- Root word: reasonable
- But let's break it down:
- "reasonable" = reason + -able
- So "unreasonable" = un- + reasonable
- But we're looking for prefix and suffix added to the root.
- Root: reason
- Prefix: un-
- Suffix: -able
- ✔ Prefix: un-, Suffix: -able

#### 6. reusable
- Root word: use
- Prefix: re- (means "again")
- Suffix: -able (means "capable of")
- ✔ Prefix: re-, Suffix: -able

#### 7. incredibly
- Root word: credit
- But actually: incredible → in- + credible
- Then incredibly = in- + credible + -ly
- Root: credit
- Prefix: in- (means "not")
- Suffix: -ly (adverbial ending)
- ✔ Prefix: in-, Suffix: -ly

#### 8. unhappy
- Root word: happy
- Prefix: un- (means "not")
- Suffix: none
- ✔ Prefix: un-, Suffix: -

#### 9. irreducible
- Root word: reduce
- Prefix: ir- (variant of in-, used before 'r', means "not")
- Suffix: -ible (means "capable of")
- ✔ Prefix: ir-, Suffix: -ible

#### 10. unfriendly
- Root word: friendly
- But "friendly" = friend + -ly
- So "unfriendly" = un- + friendly
- Root: friend
- Prefix: un-
- Suffix: -ly
- ✔ Prefix: un-, Suffix: -ly

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Final Answer Table:

| Prefix | Word | Suffix |
|--------|------------------|------------|
| un- | uninterested | |
| un- | unlike | |
| en- | encouragement | -ment |
| dis- | disgraceful | -ful |
| un- | unreasonable | -able |
| re- | reusable | -able |
| in- | incredibly | -ly |
| un- | unhappy | |
| ir- | irreducible | -ible |
| un- | unfriendly | -ly |

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✔ Explanation Summary:
- We identified the base (root) word for each.
- Then looked for common prefixes like un-, dis-, re-, in-, ir-, en-.
- And common suffixes like -able, -ment, -ful, -ly, -ible.
- Some words have only a prefix or only a suffix; others have both.

This exercise helps build understanding of how English words are constructed using affixes!