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