Science Worksheet 01 - 5th Grade - 3rd Partial | PDF - Free Printable

Let's solve this science worksheet step by step. This is a 5th-grade science worksheet focusing on the nervous system and endocrine system (glands).

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A. Instructions: Answer the questions

#### 1. What do we call the control center of our bodies?
✔ Answer: The brain
👉 The brain is the control center of the body because it processes information, controls thoughts, movements, and regulates bodily functions.

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#### 2. What three parts make up our nervous system?
✔ Answer:
- Brain
- Spinal cord
- Nerves

👉 Together, these form the central nervous system (brain and spinal cord) and the peripheral nervous system (nerves).

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#### 3. What does the cerebrum do?
✔ Answer: The cerebrum is responsible for thinking, learning, memory, voluntary movements, and sensory processing (like sight, hearing, touch).
👉 It's the largest part of the brain and controls most higher-level functions.

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#### 4. What does the cerebellum coordinate?
✔ Answer: The cerebellum coordinates balance, posture, and fine motor skills (like walking, writing, or playing an instrument).
👉 It helps you move smoothly and stay balanced.

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#### 5. Where are the neurons found in the body?
✔ Answer: Neurons are found throughout the body, especially in the brain, spinal cord, and nerves.
👉 They are the cells that transmit signals in the nervous system.

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B. Instructions: Write the names of the glands in the diagram

We need to identify the endocrine glands shown in the human body diagram.

Looking at the labeled areas:

1. Top of the head (in the brain):
➤ This is the pituitary gland (also called the "master gland") — located at the base of the brain.

2. Behind the throat (neck area):
➤ This is the thyroid gland — it controls metabolism.

3. On top of the kidneys (in the back):
➤ These are the adrenal glands — they produce stress hormones like adrenaline.

4. In the middle of the chest (behind the heart):
➤ This is the thymus gland — important for immune system development (especially in children).

> ✔ So, labeling from left to right and top to bottom:
>
> - Left side (chest): Thymus
> - Right side (brain): Pituitary gland
> - Bottom (on kidneys): Adrenal glands
> - Neck (throat): Thyroid gland

But wait — let’s check the diagram again:

- The top right arrow points to the pituitary gland (in the brain).
- The left arrow points to the thyroid gland in the neck.
- The bottom arrow points to the adrenal glands on top of the kidneys.

Wait — actually, there are three boxes:
1. One pointing to the brain → Pituitary gland
2. One pointing to the neck → Thyroid gland
3. One pointing to the kidneys → Adrenal glands

So, fill in the blanks:

- Top box (brain): Pituitary gland
- Middle box (neck): Thyroid gland
- Bottom box (kidneys): Adrenal glands

> 🟩 Final Answers for Part B:
> - Pituitary gland (brain)
> - Thyroid gland (neck)
> - Adrenal glands (on kidneys)

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✔ Complete Worksheet Answers:

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A. Questions:

1. The brain
2. Brain, spinal cord, and nerves
3. Controls thinking, memory, movement, and senses
4. Coordinates balance and fine motor skills
5. In the brain, spinal cord, and throughout the body in nerves

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B. Diagram Labels:

- Top (brain): Pituitary gland
- Middle (neck): Thyroid gland
- Bottom (kidneys): Adrenal glands

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