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