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.Which of these is part of the digestive system? (a) skull (b) blood (c) small intestine (d) spinal cord
- 2.True or false: thinking and learning is a job of the brain. (a) False (b) True
- 3.🧍 Which is the largest organ of the human body? (a) kidney (b) skin (c) heart (d) brain
- 4.True or false: cleaning the blood is a job of the kidneys. (a) False (b) True
- 5.Which of these is part of the respiratory system? (a) skull (b) small intestine (c) thigh bone (d) lung
- 6.Which of these is part of the digestive system? (a) lung (b) food pipe (c) thigh bone (d) spinal cord
- 7.🫀 The blood vessel is part of which body system? (a) digestive system (b) circulatory system (c) nervous system (d) respiratory system
- 8.True or false: guarding heart and lungs is a job of the skull. (a) False (b) True
- 9.What is a job of the ribs? (a) cleaning the blood (b) guarding heart and lungs (c) taking in oxygen (d) churning food
- 10.What is a job of the muscles? (a) pulling bones to move (b) pumping blood (c) covering the body (d) cleaning the blood
- 11.🫘 How many kidneys do we have?
- 12.🩺 Which body part has this job: pumping blood? (a) heart (b) lungs (c) muscles (d) kidneys
- 13.🫀 The nerve is part of which body system? (a) circulatory system (b) respiratory system (c) nervous system (d) digestive system
- 14.🦴 How many bones are there in a grown-up’s body?
- 15.True or false: the food pipe is part of the circulatory system. (a) False (b) True
- 16.🫀 The large intestine is part of which body system? (a) digestive system (b) skeletal system (c) respiratory system (d) nervous system
- 17.🫀 The spinal cord is part of which body system? (a) circulatory system (b) skeletal system (c) respiratory system (d) nervous system
- 18.True or false: the nerve is part of the nervous system. (a) False (b) True
- 19.True or false: churning food is a job of the stomach. (a) True (b) False
- 20.True or false: protecting the brain is a job of the stomach. (a) False (b) True
- 21.True or false: the heart is part of the circulatory system. (a) True (b) False
- 22.🔍 Which is the odd one out? (a) brain (b) rib (c) nerve (d) spinal cord
- 23.True or false: the thigh bone is part of the respiratory system. (a) True (b) False
- 24.👄 Where does digestion begin? (a) in the stomach (b) in the lungs (c) in the heart (d) in the mouth
- 25.True or false: taking in oxygen is a job of the kidneys. (a) True (b) False
- 26.🩺 Which body part has this job: thinking and learning? (a) ribs (b) stomach (c) brain (d) kidneys
- 27.True or false: guarding heart and lungs is a job of the ribs. (a) False (b) True
- 28.🩺 Which body part has this job: churning food? (a) muscles (b) stomach (c) skull (d) kidneys
- 29.🦷 How many permanent teeth does a grown-up have in all?
- 30.What is a job of the brain? (a) protecting the brain (b) guarding heart and lungs (c) pulling bones to move (d) thinking and learning
- 31.🩺 Which body part has this job: guarding heart and lungs? (a) kidneys (b) heart (c) ribs (d) skin
- 32.🦷 How many milk teeth does a child have?
- 33.🩺 Which body part has this job: covering the body? (a) lungs (b) brain (c) heart (d) skin
- 34.🦵 The longest bone of the body is in the ___. (a) neck (b) finger (c) arm (d) thigh
- 35.💨 Which gas does our body need from the air we breathe in? (a) carbon dioxide (b) smoke (c) steam (d) oxygen
- 36.👂 The smallest bone of the body is in the ___. (a) finger (b) ear (c) toe (d) nose
- 37.🫁 How many lungs do we have?
- 38.❤️ How many chambers (rooms) does the human heart have?
- 39.True or false: pulling bones to move is a job of the lungs. (a) True (b) False
- 40.🫀 The small intestine is part of which body system? (a) circulatory system (b) digestive system (c) skeletal system (d) nervous system
Answer key
- small intestine
- True
- skin
- True
- lung
- food pipe
- circulatory system
- False
- guarding heart and lungs
- pulling bones to move
- 2
- heart
- nervous system
- 206
- False
- digestive system
- nervous system
- True
- True
- False
- True
- rib
- False
- in the mouth
- False
- brain
- True
- stomach
- 32
- thinking and learning
- ribs
- 20
- skin
- thigh
- oxygen
- ear
- 2
- 4
- False
- digestive system
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