This Grade 4 Science worksheet shows how several body systems team up during a single activity like running. Students explore how the muscular system pulls on the skeletal system to move legs, while the circulatory and respiratory systems deliver oxygen and remove carbon dioxide. Multiple choice and fill-in-the-blank questions help Grade 4 learners see that no body system works alone and that healthy movement depends on smooth cooperation between many connected systems.
Style:
Body Systems and Senses
Part A: Multiple Choice
Circle the best answer for each question.
1. When you run, which system pulls on bones to move your legs?
A) Digestive system
B) Muscular system
C) Nervous system
D) Respiratory system
2. Which system gives your body its frame and supports your weight while running?
A) Skeletal system
B) Circulatory system
C) Digestive system
D) Endocrine system
3. Which system speeds up to deliver more oxygen to leg muscles?
A) Skeletal system
B) Excretory system
C) Circulatory system
D) Skin
4. Which system brings in extra oxygen from the air while you run?
A) Digestive system
B) Nervous system
C) Muscular system
D) Respiratory system
Part B: Fill in the Blank
Write the correct answer on each line.
1. Running requires the muscular and skeletal systems to work together for movement.
2. The circulatory system delivers oxygen to muscles working hard during a run.
3. Faster breathing during exercise shows the respiratory system working harder.
4. The nervous system sends signals from the brain to tell muscles when to move.
5. When body systems cooperate, they work as a team to keep you healthy and active.
Body Systems and Senses
★ Part A: Multiple Choice
Circle the best answer for each question.
1. When you run, which system pulls on bones to move your legs?
A) Digestive system
B) Muscular system
C) Nervous system
D) Respiratory system
2. Which system gives your body its frame and supports your weight while running?
A) Skeletal system
B) Circulatory system
C) Digestive system
D) Endocrine system
3. Which system speeds up to deliver more oxygen to leg muscles?
A) Skeletal system
B) Excretory system
C) Circulatory system
D) Skin
4. Which system brings in extra oxygen from the air while you run?
A) Digestive system
B) Nervous system
C) Muscular system
D) Respiratory system
★ Part B: Fill in the Blank
Write the correct answer on each line.
1) Running requires the muscular and skeletal systems to work together for movement.
2) The circulatory system delivers oxygen to muscles working hard during a run.
3) Faster breathing during exercise shows the respiratory system working harder.
4) The nervous system sends signals from the brain to tell muscles when to move.
5) When body systems cooperate, they work as a team to keep you healthy and active.
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9 Questions
12-18 minutes
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