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