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