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