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