Human Body Systems
A Grade 5 science worksheet exploring the major systems of the human body.
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Human Body Systems Worksheet
Name:
Date:
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Read each question carefully and answer to the best of your ability.
1. Which body system is responsible for breaking down food into nutrients?
Circulatory system
Respiratory system
Digestive system
Nervous system
2. What is the main organ of the circulatory system?
Brain
Lungs
Heart
Stomach
3. The system helps us breathe by taking in oxygen and releasing carbon dioxide.
4. Bones make up the system, which provides support and protection to our body.
5. The brain is part of the nervous system.
True
False
6. Muscles are only found in our arms and legs.
True
False
7. Name two important functions of the human skeleton.
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