Grade 7 Circulatory System Worksheet
A Grade 7 science worksheet covering the human circulatory system, including the heart, blood vessels, and blood components.
Includes
Standards
Topics
The Human Circulatory System
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability.
1. Which of the following is NOT a main component of the circulatory system?
Heart
Lungs
Blood
Blood Vessels
2. What is the primary function of red blood cells?
Fighting infection
Clotting blood
Transporting oxygen
Carrying nutrients
3. The heart is a muscular organ that pumps throughout the body.
4. carry oxygenated blood away from the heart.
5. carry deoxygenated blood back to the heart.
6. Briefly explain the difference between arteries and veins.
7. Platelets are responsible for fighting infections in the blood.
True
False
8. The circulatory system also helps regulate body temperature.
True
False
9. Label the four chambers of the heart in the diagram below.
A.
B.
C.
D.
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