Chapter-wise Worksheets for Class 8 Science: Circulatory System
Explore structured practice materials through the CBSE Class 8 Science Circulatory System Worksheet Set 02. Tailored for Class 8 learners, utilizing these Science worksheets ensures thorough preparation and strengthens problem-solving accuracy before final school evaluations.
Practice Class 8 Science Worksheets: Circulatory System
Access the complete worksheet PDF for Class 8 Science below. Regular practice with these targeted academic tasks builds familiarity with standard question patterns and helps secure higher marks in final school examinations.
A. Check Point and Keywords
1. Name: 1. The arteries that carry deoxygenated blood from the heart to the lungs. 2. The greenish-blue tubes under our skin. 3. The vessels that carry blood from body parts back to the heart. 4. Transferring blood from one person to another. 5. The red-coloured connective tissue that flows in our body.
Show answer
Answer: 1. Pulmonary arteries; 2. Veins; 3. Veins; 4. Blood transfusion; 5. Blood.
Teacher's Note: Use the key term in your answer.
2. True or False: 1. The human heart has four chambers. 2. Circulation of blood between heart and lungs is pulmonary circulation. 3. Coronary arteries supply blood to the heart muscles. 4. The pulse rate is about 72 per minute. 5. Heartbeat decreases with exercise.
Show answer
Answer: 1. True; 2. True; 3. True; 4. True; 5. False (it increases).
Teacher's Note: Give an example if the question allows.
3. Define: artery, blood pressure, cardiac cycle, lymph, plasma, pulmonary circulation, pulse, systemic circulation, veins.
Show answer
Answer: Artery: a vessel that carries blood away from the heart. Blood pressure: the force of blood on the walls of the arteries. Cardiac cycle: one complete heartbeat, with contraction and relaxation. Lymph: a colourless fluid like plasma, without red cells, found in lymph vessels. Plasma: the liquid part of the blood. Pulmonary circulation: the flow of blood from the heart to the lungs and back. Pulse: the throb felt in an artery with each heartbeat. Systemic circulation: the flow of blood from the heart to the body and back. Veins: vessels that carry blood to the heart.
Teacher's Note: Write a short, clear answer.
B. Exercise
(i) A person with AB+ can donate blood to. (ii) Vessels carrying deoxygenated blood. (iii) Vessels with valves. (iv) The upper limit of blood pressure. (v) A condition related to the heart.
Show answer
Answer: (i) (c) AB+; (ii) (a) Pulmonary artery; (iii) (b) Vein; (iv) (a) Systole; (v) (d) All.
Teacher's Note: Remember this for your exam.
5. Fill in the blanks: 1. ____ forms a fine mesh that traps red blood cells to form a clot. 2. ____ fluid protects the heart from external pressure. 3. The pulmonary artery arises from ____. 4. The aorta carries ____ blood. 5. The patient who receives blood is called a ____.
Show answer
Answer: 1. Fibrin; 2. Pericardial; 3. the right ventricle; 4. oxygenated; 5. recipient.
Teacher's Note: Learn this point and write it in your own words.
6. True or False: 1. The right auricle receives oxygenated blood. 2. The posterior vena cava brings oxygenated blood. 3. The lower limit of blood pressure is the diastolic pressure. 4. Blood group B is the universal acceptor. 5. Mixing Rh+ and Rh- blood can cause complications.
Show answer
Answer: 1. False (deoxygenated); 2. False (deoxygenated); 3. True; 4. False (AB); 5. True.
Teacher's Note: Use the key term in your answer.
7. Complete the table of blood groups.
Show answer
Answer:
| Group | Antigen | Antibody | Can donate to | Can receive from |
|---|---|---|---|---|
| A | A | b (anti-B) | A and AB | A and O |
| B | B | a (anti-A) | B and AB | B and O |
| AB | A and B | None | AB | A, B, AB and O |
| O | None | a and b | A, B, O and AB | O |
Teacher's Note: O is the universal donor, and AB is the universal recipient.
C. Short Answers
1. What is the circulatory system? 2. Which vein contains oxygenated blood? 3. What is double circulation? 4. Two parts of blood. 5. The upper and lower limit of blood pressure? 6. Define arteries and veins.
Show answer
Answer: 1. The system of the heart, blood and blood vessels that carries oxygen and food around the body. 2. The pulmonary vein. 3. Blood passes through the heart twice in one complete round (pulmonary and systemic circulation). 4. Plasma and blood cells (RBC, WBC, platelets). 5. Systolic and diastolic pressure (normal 120/80). 6. Arteries carry blood away from the heart, and veins carry it back.
Teacher's Note: Write a short, clear answer.
1. Two functions of blood. 2. The location of the bicuspid valve. 3. Pulmonary and systemic circulation. 4. Heartbeat and pulse. 5. What is the (a) pacemaker of the heart (b) double circulation?
Show answer
Answer: 1. It carries oxygen and food to the cells and takes away carbon dioxide and wastes; it also fights germs and clots at wounds. 2. Between the left auricle and the left ventricle. 3. Pulmonary: heart to lungs and back, carrying deoxygenated blood to be oxygenated. Systemic: heart to the whole body and back. 4. Each heartbeat sends a wave of blood through the arteries that is felt as the pulse, so the pulse rate equals the heartbeat rate. 5. (a) The sino-atrial node, a small group of cells in the right auricle that starts each heartbeat. (b) The two circuits, pulmonary and systemic.
Teacher's Note: Remember this for your exam.
D. Long Answers
1. Define blood. Write a note on blood groups, the universal donor and the universal recipient.
Show answer
Answer: Blood is a red fluid connective tissue that flows in the blood vessels, made of plasma, RBCs, WBCs and platelets. The ABO system has groups A, B, AB and O, depending on antigens on the red cells. Group O has no antigens, so it can be given to anybody and is the universal donor. Group AB has no antibodies, so it can receive from all and is the universal recipient. The Rh factor (Rh+ and Rh-) must also match.
Teacher's Note: Learn this point and write it in your own words.
2. Blood circulation in the human heart.
Show answer
Answer: The heart has four chambers: two upper auricles and two lower ventricles. Deoxygenated blood from the body enters the right auricle through the vena cava, goes to the right ventricle and is pumped by the pulmonary artery to the lungs. Oxygenated blood returns by the pulmonary veins to the left auricle, goes to the left ventricle and is pumped through the aorta to the body. Valves prevent backflow.
Teacher's Note: Use the key term in your answer.
3. Blood vessels and their functions.
Show answer
Answer:
| Vessel | Function |
|---|---|
| Arteries (thick, elastic walls) | Carry blood from the heart to the organs, usually oxygenated |
| Veins (thin walls, with valves) | Carry blood back to the heart, usually deoxygenated |
| Capillaries (very thin walls) | Exchange of gases, food and wastes between blood and cells |
Teacher's Note: Give an example if the question allows.
4. What is lymph? Functions of the lymphatic system.
Show answer
Answer: Lymph is a colourless fluid that leaks from the capillaries into the tissues. The lymphatic system carries lymph back to the blood, helps to fight infections through the white cells in lymph nodes, absorbs fats from the intestine and drains extra fluid from the tissues.
Teacher's Note: Write a short, clear answer.
5. Conditions related to the heart.
Show answer
Answer: Hypertension (high blood pressure), hypotension (low blood pressure), palpitation (a fast, strong heartbeat), angina (chest pain from lack of blood to the heart) and cardiac arrest (the heart stops beating). A healthy diet, exercise and no smoking prevent them.
Teacher's Note: Remember this for your exam.
Free study material for Science
CBSE Class 8 Science Worksheets for Circulatory System
Practice Exercises for Class 8 Science Circulatory System
Access structured practice worksheets for Circulatory System aligned with the 2026 CBSE curriculum. These downloadable exercises for Class 8 Science help students build accuracy and reinforce core concepts for upcoming school tests.
Step-by-Step Solutions and Practice Guidelines
Built using official NCERT guidelines for Class 8 Science, these practice sheets provide reliable academic support. Cross-reference your completed work with our detailed solutions to learn standard answer-writing formats for CBSE exams.
Enhance Speed with Online Practice
Follow up your worksheet practice by attempting the interactive online MCQ tests for Circulatory System to evaluate your execution speed. All printable assignments and revision sheets on our platform are updated for the 2026 session and available free of charge.
FAQs
You can download the latest chapter-wise printable worksheets for Class 8 Science Circulatory System for free from StudiesToday.com. These have been made as per the latest CBSE curriculum for this academic year.
Yes, Class 8 Science worksheets for Circulatory System focus on activity-based learning and also competency-style questions. This helps students to apply theoretical knowledge to practical scenarios.
Yes, we have provided solved worksheets for Class 8 Science Circulatory System to help students verify their answers instantly.
Yes, our Class 8 Science test sheets are mobile-friendly PDFs and can be printed by teachers for classroom.
For Circulatory System, regular practice with our worksheets will improve question-handling speed and help students understand all technical terms and diagrams.