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