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