What Is the Excretory System? Human Body Printable (6th-12th Grade ... - Free Printable

Thank you for uploading the worksheet. Since I can’t view or process images directly, I’ll rely on the text you’ve provided — which appears to be a complete transcription of the “What is the excretory system?” worksheet from TeacherVision.

I’ll solve both sections: Lesson Review (True/False with corrections) and Skill Challenge (labeling the diagram).

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## ✔ SECTION 1: Lesson Review — True/False + Corrections

> Instructions: Write “true” if the statement is true. If the statement is false, change the underlined term to make the statement true.

Let’s go one by one:

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1. Carbon dioxide and sugar are byproducts of cellular respiration.

→ ✘ False
✔ Correction: Carbon dioxide and water are byproducts of cellular respiration.
*(Sugar is a reactant, not a byproduct. Cellular respiration breaks down glucose/sugar to produce CO₂, H₂O, and ATP.)*

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2. Excretion is the process by which the body rids itself of waste products.

→ ✔ True

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3. One of the waste products of the human body is liquid.

→ ✔ True
*(Urine is a liquid waste product. Sweat is also liquid.)*

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4. Waste products that build up in the body are harmful to the body.

→ ✔ True

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5. Removing waste products from the body is the job of the circulatory system.

→ ✘ False
✔ Correction: Removing waste products from the body is the job of the excretory system.
*(The circulatory system transports waste to excretory organs, but doesn’t remove it.)*

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6. The three main organs of excretion are the lungs, skin, and liver.

→ ✘ False
✔ Correction: The three main organs of excretion are the lungs, skin, and kidneys.
*(Liver detoxifies but doesn’t excrete — kidneys filter blood and produce urine.)*

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7. Dehydrated people lose more water from the body through the skin.

→ ✘ False
✔ Correction: Dehydrated people lose less water from the body through the skin.
*(In dehydration, the body conserves water — sweat production decreases.)*

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8. The job of the small intestine is to remove water from undigested wastes.

→ ✘ False
✔ Correction: The job of the large intestine is to remove water from undigested wastes.
*(Small intestine absorbs nutrients; large intestine absorbs water and forms feces.)*

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9. The largest organ of the excretory system is the skin.

→ ✔ True
*(Skin is the largest organ in the body and excretes sweat, making it part of the excretory system.)*

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10. The job of the kidneys is to get rid of solid wastes.

→ ✘ False
✔ Correction: The job of the kidneys is to get rid of liquid wastes.
*(Kidneys filter blood to form urine — liquid waste. Solid wastes are handled by the digestive system.)*

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11. The tube that carries liquid wastes from the kidneys to the bladder is the ureter.

→ ✔ True

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12. Liquid waste is excreted through the large intestine.

→ ✘ False
✔ Correction: Liquid waste is excreted through the urethra.
*(Large intestine excretes solid waste — feces. Urine (liquid waste) leaves via urethra.)*

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## ✔ SECTION 2: Skill Challenge — Labeling the Diagram

> Study the diagram of the excretory system. In the spaces provided, write the name of the excretory organ that is identified by each number.

Since I can’t see the image, I’ll assume the standard labeling for a human excretory system diagram based on common educational worksheets.

Typical labels (from top to bottom or left to right):

- 1 → Lungs (excrete CO₂)
- 2 → Skin (excretes sweat)
- 3 → Kidneys (filter blood, produce urine)
- 4 → Ureters (tubes from kidneys to bladder)
- 5 → Bladder (stores urine)
- 6 → Urethra (tube from bladder to outside)

But since your worksheet only has 4 blanks, and the diagram likely shows 4 major organs, here’s the most probable matching:

Assuming the numbers point to:

- 1 → Kidneys
- 2 → Ureters
- 3 → Bladder
- 4 → Urethra

*(Sometimes lungs and skin are included too, but given the context, this is likely focused on the urinary tract.)*

However, since the instructions say “excretory organs,” and lungs/skin are also part of excretion, let’s consider the most common 4-label version:

🔹 Likely correct answers for 4 blanks:

1. Kidneys
2. Ureters
3. Bladder
4. Urethra

*(If the diagram includes lungs or skin, adjust accordingly — but without seeing it, this is the safest assumption for a urinary-focused diagram.)*

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## 📝 Final Answers Summary:

✔ Lesson Review:

1. water
2. true
3. true
4. true
5. excretory system
6. kidneys
7. less
8. large intestine
9. true
10. liquid
11. true
12. urethra

✔ Skill Challenge (assuming standard urinary system diagram):

1. Kidneys
2. Ureters
3. Bladder
4. Urethra

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📌 Note: If your diagram includes different organs (like lungs or skin), please describe what each number points to, and I’ll adjust the labels accordingly!

Let me know if you’d like a printable answer key or explanation slides!