Subject identification worksheet for elementary students.

To find the subject in a sentence, we need to ask: "Who or what is this sentence about?" or "Who or what is doing the action?"

Here is the step-by-step breakdown for each sentence:

1. I went to the park today.
* Who went? I did.
* Subject: I

2. Mom baked cookies for us.
* Who baked? Mom did.
* Subject: Mom

3. The dog barked as we walked by.
* Who barked? The dog did. (Note: "we" is also a subject for the second part of the sentence, but usually, we look for the main subject first. In simple exercises like this, identifying the main starter is key. However, strictly speaking, "we" is also a subject. Let's look at the others. Usually, these worksheets want the main subject of the independent clause. Let's stick to the primary subject performing the main action described).
* Subject: The dog (and technically we)

4. The car is blue and white.
* What is blue and white? The car is.
* Subject: The car

5. We are going to visit our grandparents.
* Who is going? We are.
* Subject: We

6. My best friend is moving away.
* Who is moving? My best friend is.
* Subject: My best friend

7. We had a party on the last day of school.
* Who had a party? We did.
* Subject: We

8. Our house has two stories.
* What has two stories? Our house does.
* Subject: Our house

9. Dad went to work early today.
* Who went? Dad did.
* Subject: Dad

10. My sister rode her bike to the store.
* Who rode? My sister did.
* Subject: My sister

Final Answer:
1. I
2. Mom
3. The dog (and we)
4. The car
5. We
6. My best friend
7. We
8. Our house
9. Dad
10. My sister