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