Educational worksheet on identifying four kinds of sentences—declarative, interrogative, imperative, and exclamatory—using facts about blue whales.

Task Explanation:

The task requires identifying the type of each sentence as declarative, interrogative, imperative, or exclamatory. Here's a brief explanation of each type:

1. Declarative Sentence: A statement that makes a declaration or assertion. It ends with a period (.).
2. Interrogative Sentence: A question that seeks information. It ends with a question mark (?).
3. Imperative Sentence: A command or request. It often ends with a period (.) but can also end with an exclamation point (!) if it is forceful.
4. Exclamatory Sentence: An expression of strong emotion or surprise. It ends with an exclamation point (!).

Solution:

Let's analyze each sentence and classify it accordingly.

---

#### 1. The blue whale is the largest animal.
- Type: Declarative
- Reason: It makes a statement about the size of the blue whale.

#### 2. It is bigger than thirty elephants.
- Type: Declarative
- Reason: It asserts a comparison between the blue whale and elephants.

#### 3. How much does it eat every day?
- Type: Interrogative
- Reason: It asks a question about the blue whale's daily food consumption.

#### 4. It eats from four to eight tons of food a day.
- Type: Declarative
- Reason: It states the amount of food the blue whale consumes daily.

#### 5. What a huge appetite it has!
- Type: Exclamatory
- Reason: It expresses amazement at the blue whale's appetite.

#### 6. Blue whales are so gigantic!
- Type: Exclamatory
- Reason: It expresses admiration for the size of blue whales.

#### 7. Does it really weigh 100 tons?
- Type: Interrogative
- Reason: It asks whether the blue whale weighs 100 tons.

#### 8. The Antarctic blue whale weighs up to 150 tons!
- Type: Exclamatory
- Reason: It emphasizes the massive weight of the Antarctic blue whale.

#### 9. It spends six months a year feeding in Antarctic waters.
- Type: Declarative
- Reason: It states a fact about the blue whale's feeding habits.

#### 10. A blue whale is about twenty-five feet long at birth.
- Type: Declarative
- Reason: It provides information about the length of a baby blue whale.

#### 11. What a big baby that is!
- Type: Exclamatory
- Reason: It expresses amazement at the size of a baby blue whale.

#### 12. How much does a baby blue whale weigh?
- Type: Interrogative
- Reason: It asks about the weight of a baby blue whale.

#### 13. Please read the sign to find out.
- Type: Imperative
- Reason: It gives a polite instruction to read the sign.

#### 14. It weighs about two tons at birth.
- Type: Declarative
- Reason: It states the weight of a baby blue whale at birth.

#### 15. Note the size of that whale.
- Type: Imperative
- Reason: It gives a command to observe the size of the whale.

---

Final Answer:

Here is the completed worksheet with the classifications:

| Sentence | Type |
|--------------------------------------------------------------------------|---------------|
| 1. The blue whale is the largest animal. | Declarative |
| 2. It is bigger than thirty elephants. | Declarative |
| 3. How much does it eat every day? | Interrogative |
| 4. It eats from four to eight tons of food a day. | Declarative |
| 5. What a huge appetite it has! | Exclamatory |
| 6. Blue whales are so gigantic! | Exclamatory |
| 7. Does it really weigh 100 tons? | Interrogative |
| 8. The Antarctic blue whale weighs up to 150 tons! | Exclamatory |
| 9. It spends six months a year feeding in Antarctic waters. | Declarative |
| 10. A blue whale is about twenty-five feet long at birth. | Declarative |
| 11. What a big baby that is! | Exclamatory |
| 12. How much does a baby blue whale weigh? | Interrogative |
| 13. Please read the sign to find out. | Imperative |
| 14. It weighs about two tons at birth. | Declarative |
| 15. Note the size of that whale. | Imperative |

Final Answer:
\boxed{
\begin{array}{ll}
1. & \text{Declarative} \\
2. & \text{Declarative} \\
3. & \text{Interrogative} \\
4. & \text{Declarative} \\
5. & \text{Exclamatory} \\
6. & \text{Exclamatory} \\
7. & \text{Interrogative} \\
8. & \text{Exclamatory} \\
9. & \text{Declarative} \\
10. & \text{Declarative} \\
11. & \text{Exclamatory} \\
12. & \text{Interrogative} \\
13. & \text{Imperative} \\
14. & \text{Declarative} \\
15. & \text{Imperative} \\
\end{array}
}