Class 3 GK Worksheet: Human Body Systems
Remember (Which team?): Digestive: food pipe, stomach, intestines, liver. Respiratory: windpipe, lungs. Circulatory: heart, blood vessels, blood. Nervous: brain, spinal cord, nerves. Skeletal: skull, ribs, backbone. Jobs: heart – pumps blood, lungs – take in oxygen, kidneys – clean the blood, skull – protects the brain, ribs – guard heart and lungs. Numbers: 206 bones, 4 chambers in the heart, 2 lungs, 2 kidneys, 32 grown-up teeth.
NameDateTime takenScore ___ / 40
- 1.🫁 How many lungs do we have?
- 2.True or false: the brain is part of the nervous system. (a) False (b) True
- 3.True or false: the backbone is part of the digestive system. (a) False (b) True
- 4.👄 Where does digestion begin? (a) in the lungs (b) in the stomach (c) in the heart (d) in the mouth
- 5.🩺 Which body part has this job: taking in oxygen? (a) skull (b) ribs (c) skin (d) lungs
- 6.Which of these is part of the digestive system? (a) food pipe (b) blood vessel (c) lung (d) spinal cord
- 7.True or false: thinking and learning is a job of the brain. (a) True (b) False
- 8.🫀 The large intestine is part of which body system? (a) digestive system (b) respiratory system (c) skeletal system (d) nervous system
- 9.True or false: pulling bones to move is a job of the skin. (a) False (b) True
- 10.🔍 Which is the odd one out? (a) thigh bone (b) skull (c) blood (d) backbone
- 11.🦴 How many bones are there in a grown-up’s body?
- 12.True or false: the food pipe is part of the digestive system. (a) False (b) True
- 13.True or false: pulling bones to move is a job of the ribs. (a) False (b) True
- 14.True or false: pulling bones to move is a job of the brain. (a) False (b) True
- 15.💨 Which gas does our body need from the air we breathe in? (a) smoke (b) steam (c) carbon dioxide (d) oxygen
- 16.🩺 Which body part has this job: covering the body? (a) stomach (b) ribs (c) kidneys (d) skin
- 17.True or false: covering the body is a job of the skin. (a) True (b) False
- 18.True or false: pulling bones to move is a job of the muscles. (a) True (b) False
- 19.🔍 Which is the odd one out? (a) backbone (b) rib (c) stomach (d) skull
- 20.What is a job of the brain? (a) covering the body (b) thinking and learning (c) guarding heart and lungs (d) cleaning the blood
- 21.Which of these is part of the skeletal system? (a) blood (b) spinal cord (c) windpipe (d) backbone
- 22.True or false: protecting the brain is a job of the brain. (a) False (b) True
- 23.🫀 The liver is part of which body system? (a) circulatory system (b) digestive system (c) respiratory system (d) skeletal system
- 24.What is a job of the kidneys? (a) pumping blood (b) cleaning the blood (c) guarding heart and lungs (d) taking in oxygen
- 25.What is a job of the heart? (a) pulling bones to move (b) pumping blood (c) thinking and learning (d) covering the body
- 26.🫀 The small intestine is part of which body system? (a) digestive system (b) skeletal system (c) respiratory system (d) nervous system
- 27.Which of these is part of the nervous system? (a) spinal cord (b) small intestine (c) liver (d) thigh bone
- 28.🩺 Which body part has this job: thinking and learning? (a) skin (b) ribs (c) brain (d) skull
- 29.🔍 Which is the odd one out? (a) blood (b) large intestine (c) heart (d) blood vessel
- 30.🩺 Which body part has this job: pulling bones to move? (a) heart (b) skull (c) skin (d) muscles
- 31.True or false: the blood vessel is part of the skeletal system. (a) False (b) True
- 32.True or false: pumping blood is a job of the heart. (a) True (b) False
- 33.True or false: the backbone is part of the skeletal system. (a) False (b) True
- 34.🔍 Which is the odd one out? (a) heart (b) blood (c) skull (d) blood vessel
- 35.Which of these is part of the circulatory system? (a) blood vessel (b) backbone (c) thigh bone (d) skull
- 36.🫀 The backbone is part of which body system? (a) digestive system (b) nervous system (c) skeletal system (d) respiratory system
- 37.Which of these is part of the skeletal system? (a) spinal cord (b) skull (c) small intestine (d) lung
- 38.❤️ How many chambers (rooms) does the human heart have?
- 39.What is a job of the ribs? (a) pulling bones to move (b) guarding heart and lungs (c) covering the body (d) pumping blood
- 40.🧍 Which is the largest organ of the human body? (a) heart (b) brain (c) skin (d) kidney
Answer key
- 2
- True
- False
- in the mouth
- lungs
- food pipe
- True
- digestive system
- False
- blood
- 206
- True
- False
- False
- oxygen
- skin
- True
- True
- stomach
- thinking and learning
- backbone
- False
- digestive system
- cleaning the blood
- pumping blood
- digestive system
- spinal cord
- brain
- large intestine
- muscles
- False
- True
- True
- skull
- blood vessel
- skeletal system
- skull
- 4
- guarding heart and lungs
- skin
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