The circulatory system interactive worksheet - Free Printable

Absolutely! Let’s solve this worksheet step by step.

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## ✔ Part 1: Label the parts of the circulatory system

You are given a diagram of a human body with three arrows pointing to different parts of the circulatory system. Below the diagram, you have three labels to choose from:

> Arteries — carry blood *away* from the heart (usually oxygen-rich)
> Veins — carry blood *back to* the heart (usually oxygen-poor)
> Heart — the muscular organ that pumps blood throughout the body

Now, let’s match the arrows:

- Green arrow → points to the heart (it’s the central organ in the chest)
- Red arrow → points to a large vessel coming *out* of the heart — this is an artery
- Blue arrow → points to a vessel going *into* the leg/returning to the heart — this is a vein

🟢 Green box: Heart

🔴 Red box: Arteries

🔵 Blue box: Veins

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## ✔ Part 2: Complete the text with the words in the box

Words to use:
> blood, nutrients, heart, circulatory, arteries

Text to complete:
> “The ________ system moves ________ through the ________ and veins. Blood gives our body ________ and oxygen.”

Let’s fill it in logically:

1. The circulatory system — this is the name of the system we’re studying.
2. moves blood — the fluid that circulates.
3. through the arteries and veins — these are the vessels that carry blood.
4. gives our body nutrients and oxygen — blood delivers both to cells.

✔ So the completed sentence is:

> “The _circulatory_ system moves _blood_ through the _arteries_ and veins. Blood gives our body _nutrients_ and oxygen.”

*(Note: “heart” is not needed here — it’s already implied as the pump, but not required to fill the blanks.)*

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## 🎯 Final Answers:

Part 1:

- Green box → Heart
- Red box → Arteries
- Blue box → Veins

Part 2:

> The circulatory system moves blood through the arteries and veins. Blood gives our body nutrients and oxygen.

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✔ You’ve now correctly labeled the diagram and completed the text!

Let me know if you’d like a printable version or further explanation! 😊