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Science Worksheet
❤️ The Circulatory System
Science · Class 7 · Transportation in Animals and Plants
Name:
Class:
Date:
Marks:
/ 16
Section A: Fill in the blanks
[5 marks]

Fill in each blank with the correct word from the lesson.

  1. It consists of the heart — a _______-chambered muscular pump — blood vessels, and blood.
  2. Red blood cells contain _______, an iron-containing protein that carries oxygen.
  3. The _______ system transports oxygen, nutrients, hormones, and waste products around the body.
  4. White blood cells are the immune _______'s soldiers — they identify and destroy pathogens.
  5. Humans have a double _______: the right side of the heart pumps blood to the lungs to collect oxygen, while the left side pumps oxygen-rich blood around the rest of the body.
Section B: Circle the correct answer
[3 marks]

Choose the best option for each question.

  1. How many chambers does the human heart have?
    a) Twob) Threec) Fourd) Five
  2. What protein in red blood cells carries oxygen?
    a) Insulinb) Haemoglobinc) Keratind) Collagen
  3. What is the function of platelets?
    a) Carry oxygenb) Fight infectionc) Help blood clot at woundsd) Produce hormones
Section C: True or False
[4 marks]

Write T for True or F for False in the brackets.

  1. It consists of the heart — a four-chambered muscular pump — blood vessels, and blood.
  2. It consists of the heart — a Two-chambered muscular pump — blood vessels, and blood.
  3. Red blood cells contain haemoglobin, an iron-containing protein that carries oxygen.
  4. Red blood cells contain Insulin, an iron-containing protein that carries oxygen.
Section D: Answer in one line
[4 marks]
  1. In your own words, explain what The Circulatory System means.
  2. List two things you learned from this lesson on The Circulatory System.
Total Marks: 16⭐ Good luck!doodlr.xyz/worksheets/circulatory-system
Answer Key
The Circulatory System
Section A — Fill in the blanks
  1. Four
  2. Haemoglobin
  3. Circulatory
  4. System
  5. circulation
Section B — MCQ
  1. c) Four
  2. b) Haemoglobin
  3. c) Help blood clot at wounds
Section C — True or False
  1. T — True
  2. F — False
  3. T — True
  4. F — False
Section D — Short Answer

Accept any reasonable answer that shows understanding of The Circulatory System.

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