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