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