The circulatory system online worksheet - Free Printable

Task: Solve the problem and explain the solution

The worksheet focuses on understanding the circulatory system. Let's solve each part step by step:

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#### 1. Learn the vocabulary. Copy.
- The task is to copy the vocabulary words provided:
- heart
- veins
- blood

These are key components of the circulatory system.

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#### 2. Label its parts.
- The image shows a human body with the circulatory system highlighted. The labels should be placed as follows:
- Heart: The central organ in the chest.
- Veins: The blood vessels shown in blue (carrying deoxygenated blood back to the heart).
- Blood: The red liquid flowing through the vessels.

Labeling:
- Place "heart" near the central organ in the chest.
- Place "veins" along the blue-colored blood vessels.
- Place "blood" near the red droplet or within the vessels.

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#### 3. What is the function of the circulatory system? Tick.
- The options given are:
1. Absorb nutrients.
2. Eliminate urine.
3. Transport oxygen and nutrients.

The correct function of the circulatory system is:
- Transport oxygen and nutrients.

So, tick the third option:
- ✔ Transport oxygen and nutrients.

Explanation:
- The circulatory system's primary function is to transport oxygen from the lungs to the cells and nutrients from the digestive system to the cells. It also removes waste products like carbon dioxide.

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#### 4. Click on the words related to the circulatory system.
- The words provided are:
- mouth
- veins
- transport
- lungs
- heart
- pump
- blood
- respiration

The words related to the circulatory system are:
- veins: Blood vessels that carry blood back to the heart.
- transport: The circulatory system transports blood, oxygen, and nutrients.
- heart: The central organ that pumps blood.
- pump: The heart acts as a pump.
- blood: The fluid transported by the circulatory system.

So, click on:
- veins
- transport
- heart
- pump
- blood

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#### 5. What do they do? Read and match.
- Two images are provided:
1. A heart.
2. A bag of blood.

Match them with their functions:
- Heart: It pumps the blood around the body.
- Blood: It transports nutrients and oxygen.

Matching:
- Heart → It pumps the blood around the body.
- Blood → It transports nutrients and oxygen.

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Final Answers:

1. Vocabulary: heart, veins, blood
2. Labeling: Place labels as described above.
3. Function: ✔ Transport oxygen and nutrients.
4. Related words: veins, transport, heart, pump, blood
5. Matching:
- Heart: It pumps the blood around the body.
- Blood: It transports nutrients and oxygen.

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This completes the worksheet. If you have any further questions, feel free to ask!