Singular and Plural Nouns | Kindergarten Noun Worksheet - Free Printable

Problem Overview:

The task involves converting singular nouns to plural nouns and vice versa. The rules provided state that the regular plural form of a noun is typically formed by adding an "s" to the end of the word. If the noun is already plural, you should write its singular form.

Solution:

#### Step-by-Step Conversion:
1. Identify whether each noun is singular or plural.
2. Apply the rule:
- If the noun is singular, add an "s" to make it plural.
- If the noun is plural, remove the "s" to make it singular.

#### List of Words:
1. car (singular) → cars (plural)
2. hair (uncountable, no plural form) → hair (remains the same)
3. plants (plural) → plant (singular)
4. table (singular) → tables (plural)
5. chair (singular) → chairs (plural)
6. lakes (plural) → lake (singular)
7. animals (plural) → animal (singular)
8. baseball (singular) → baseballs (plural)
9. house (singular) → houses (plural)
10. desks (plural) → desk (singular)
11. video (singular) → videos (plural)
12. students (plural) → student (singular)

#### Final Answer:
1. car → cars
2. hair → hair
3. plants → plant
4. table → tables
5. chair → chairs
6. lakes → lake
7. animals → animal
8. baseball → baseballs
9. house → houses
10. desks → desk
11. video → videos
12. students → student

Explanation:

- Singular to Plural: Most singular nouns become plural by simply adding an "s" (e.g., "car" → "cars").
- Plural to Singular: Most plural nouns become singular by removing the "s" (e.g., "plants" → "plant").
- Uncountable Nouns: Some nouns, like "hair," are uncountable and do not have a plural form. They remain the same.

Final Boxed Answer:

\[
\boxed{
\begin{array}{ll}
1. \text{car} & \text{cars} \\
2. \text{hair} & \text{hair} \\
3. \text{plants} & \text{plant} \\
4. \text{table} & \text{tables} \\
5. \text{chair} & \text{chairs} \\
6. \text{lakes} & \text{lake} \\
7. \text{animals} & \text{animal} \\
8. \text{baseball} & \text{baseballs} \\
9. \text{house} & \text{houses} \\
10. \text{desks} & \text{desk} \\
11. \text{video} & \text{videos} \\
12. \text{students} & \text{student} \\
\end{array}
}
\]