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