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