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