This worksheet helps first graders practice turning singular nouns like "cat" and "fox" into their plural forms.

To find the plural form of each noun, we follow these simple rules:
1. Most nouns: Add -s.
2. Nouns ending in s, x, z, ch, or sh: Add -es.
3. Nouns ending in a consonant + y: Change the y to i and add -es.

Let’s go through each one:

1) cat → ends in t → add -s → cats
2) bird → ends in d → add -s → birds
3) dog → ends in g → add -s → dogs
4) bunny → ends in ny (consonant + y) → change y to i, add -es → bunnies
5) hamster → ends in r → add -s → hamsters
6) pig → ends in g → add -s → pigs
7) fox → ends in x → add -es → foxes
8) chicken → ends in n → add -s → chickens
9) horse → ends in e → add -s → horses
10) pony → ends in ny (consonant + y) → change y to i, add -es → ponies

Final Answer:
1) cats
2) birds
3) dogs
4) bunnies
5) hamsters
6) pigs
7) foxes
8) chickens
9) horses
10) ponies