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.What is a job of the brain? (a) cleaning the blood (b) pumping blood (c) guarding heart and lungs (d) thinking and learning
- 2.🫁 How many lungs do we have?
- 3.🧍 Which is the largest organ of the human body? (a) brain (b) heart (c) kidney (d) skin
- 4.🦵 The longest bone of the body is in the ___. (a) thigh (b) finger (c) neck (d) arm
- 5.🦷 How many milk teeth does a child have?
- 6.🩺 Which body part has this job: pulling bones to move? (a) ribs (b) skin (c) muscles (d) lungs
- 7.True or false: the windpipe is part of the nervous system. (a) False (b) True
- 8.True or false: the heart is part of the circulatory system. (a) True (b) False
- 9.🫀 The brain is part of which body system? (a) nervous system (b) digestive system (c) skeletal system (d) respiratory system
- 10.True or false: churning food is a job of the heart. (a) False (b) True
- 11.True or false: taking in oxygen is a job of the lungs. (a) False (b) True
- 12.🫀 The large intestine is part of which body system? (a) nervous system (b) skeletal system (c) respiratory system (d) digestive system
- 13.True or false: protecting the brain is a job of the lungs. (a) True (b) False
- 14.🔍 Which is the odd one out? (a) nerve (b) spinal cord (c) small intestine (d) brain
- 15.🔍 Which is the odd one out? (a) blood (b) heart (c) blood vessel (d) rib
- 16.💨 Which gas does our body need from the air we breathe in? (a) carbon dioxide (b) steam (c) oxygen (d) smoke
- 17.🫀 The skull is part of which body system? (a) skeletal system (b) digestive system (c) respiratory system (d) circulatory system
- 18.True or false: the thigh bone is part of the skeletal system. (a) False (b) True
- 19.Which of these is part of the digestive system? (a) rib (b) blood vessel (c) food pipe (d) blood
- 20.Which of these is part of the digestive system? (a) thigh bone (b) heart (c) skull (d) small intestine
- 21.True or false: the stomach is part of the digestive system. (a) True (b) False
- 22.True or false: the rib is part of the nervous system. (a) True (b) False
- 23.What is a job of the muscles? (a) pulling bones to move (b) guarding heart and lungs (c) pumping blood (d) cleaning the blood
- 24.🩺 Which body part has this job: churning food? (a) heart (b) ribs (c) lungs (d) stomach
- 25.🫀 The blood is part of which body system? (a) circulatory system (b) respiratory system (c) skeletal system (d) nervous system
- 26.True or false: the lung is part of the circulatory system. (a) False (b) True
- 27.True or false: taking in oxygen is a job of the skull. (a) False (b) True
- 28.🔍 Which is the odd one out? (a) blood vessel (b) lung (c) heart (d) blood
- 29.True or false: the spinal cord is part of the nervous system. (a) True (b) False
- 30.🔍 Which is the odd one out? (a) brain (b) spinal cord (c) nerve (d) heart
- 31.🫀 The food pipe is part of which body system? (a) digestive system (b) skeletal system (c) circulatory system (d) respiratory system
- 32.🔍 Which is the odd one out? (a) brain (b) spinal cord (c) thigh bone (d) nerve
- 33.What is a job of the ribs? (a) taking in oxygen (b) thinking and learning (c) pulling bones to move (d) guarding heart and lungs
- 34.🩺 Which body part has this job: guarding heart and lungs? (a) ribs (b) stomach (c) skin (d) muscles
- 35.🫀 The stomach is part of which body system? (a) skeletal system (b) circulatory system (c) digestive system (d) nervous system
- 36.True or false: covering the body is a job of the muscles. (a) True (b) False
- 37.👄 Where does digestion begin? (a) in the heart (b) in the mouth (c) in the stomach (d) in the lungs
- 38.Which of these is part of the skeletal system? (a) spinal cord (b) backbone (c) stomach (d) lung
- 39.What is a job of the heart? (a) covering the body (b) pulling bones to move (c) guarding heart and lungs (d) pumping blood
- 40.True or false: the blood is part of the digestive system. (a) False (b) True
Answer key
- thinking and learning
- 2
- skin
- thigh
- 20
- muscles
- False
- True
- nervous system
- False
- True
- digestive system
- False
- small intestine
- rib
- oxygen
- skeletal system
- True
- food pipe
- small intestine
- True
- False
- pulling bones to move
- stomach
- circulatory system
- False
- False
- lung
- True
- heart
- digestive system
- thigh bone
- guarding heart and lungs
- ribs
- digestive system
- False
- in the mouth
- backbone
- pumping blood
- False
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