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