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