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