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) skin (d) heart
- 2.🫘 How many kidneys do we have?
- 3.🫀 The brain is part of which body system? (a) respiratory system (b) skeletal system (c) circulatory system (d) nervous system
- 4.🔍 Which is the odd one out? (a) skull (b) nerve (c) brain (d) spinal cord
- 5.True or false: cleaning the blood is a job of the kidneys. (a) False (b) True
- 6.🩺 Which body part has this job: covering the body? (a) heart (b) ribs (c) lungs (d) skin
- 7.True or false: taking in oxygen is a job of the heart. (a) False (b) True
- 8.True or false: cleaning the blood is a job of the ribs. (a) True (b) False
- 9.🦴 How many bones are there in a grown-up’s body?
- 10.🔍 Which is the odd one out? (a) brain (b) nerve (c) spinal cord (d) stomach
- 11.🩺 Which body part has this job: taking in oxygen? (a) heart (b) muscles (c) skull (d) lungs
- 12.What is a job of the heart? (a) churning food (b) protecting the brain (c) cleaning the blood (d) pumping blood
- 13.What is a job of the stomach? (a) cleaning the blood (b) churning food (c) guarding heart and lungs (d) pumping blood
- 14.True or false: cleaning the blood is a job of the stomach. (a) True (b) False
- 15.True or false: the rib is part of the skeletal system. (a) True (b) False
- 16.True or false: the heart is part of the digestive system. (a) False (b) True
- 17.True or false: thinking and learning is a job of the brain. (a) False (b) True
- 18.What is a job of the ribs? (a) covering the body (b) guarding heart and lungs (c) cleaning the blood (d) taking in oxygen
- 19.🫀 The blood vessel is part of which body system? (a) nervous system (b) digestive system (c) skeletal system (d) circulatory system
- 20.🫀 The heart is part of which body system? (a) circulatory system (b) nervous system (c) skeletal system (d) respiratory system
- 21.🫀 The rib is part of which body system? (a) circulatory system (b) digestive system (c) respiratory system (d) skeletal system
- 22.Which of these is part of the respiratory system? (a) rib (b) brain (c) large intestine (d) lung
- 23.❤️ How many chambers (rooms) does the human heart have?
- 24.True or false: the thigh bone is part of the skeletal system. (a) False (b) True
- 25.True or false: the brain is part of the circulatory system. (a) True (b) False
- 26.🩺 Which body part has this job: protecting the brain? (a) muscles (b) lungs (c) skull (d) brain
- 27.🫀 The spinal cord is part of which body system? (a) digestive system (b) respiratory system (c) nervous system (d) skeletal system
- 28.🫁 How many lungs do we have?
- 29.What is a job of the muscles? (a) pulling bones to move (b) churning food (c) pumping blood (d) taking in oxygen
- 30.True or false: the heart is part of the circulatory system. (a) True (b) False
- 31.🫀 The lung is part of which body system? (a) respiratory system (b) nervous system (c) circulatory system (d) digestive system
- 32.🩺 Which body part has this job: guarding heart and lungs? (a) skull (b) heart (c) ribs (d) lungs
- 33.🔍 Which is the odd one out? (a) skull (b) thigh bone (c) blood (d) rib
- 34.🔍 Which is the odd one out? (a) blood vessel (b) small intestine (c) blood (d) heart
- 35.Which of these is part of the skeletal system? (a) large intestine (b) lung (c) thigh bone (d) heart
- 36.True or false: guarding heart and lungs is a job of the ribs. (a) True (b) False
- 37.🔍 Which is the odd one out? (a) spinal cord (b) brain (c) lung (d) nerve
- 38.What is a job of the kidneys? (a) covering the body (b) cleaning the blood (c) thinking and learning (d) pumping blood
- 39.Which of these is part of the skeletal system? (a) skull (b) spinal cord (c) large intestine (d) liver
- 40.🫀 The windpipe is part of which body system? (a) digestive system (b) nervous system (c) circulatory system (d) respiratory system
Answer key
- skin
- 2
- nervous system
- skull
- True
- skin
- False
- False
- 206
- stomach
- lungs
- pumping blood
- churning food
- False
- True
- False
- True
- guarding heart and lungs
- circulatory system
- circulatory system
- skeletal system
- lung
- 4
- True
- False
- skull
- nervous system
- 2
- pulling bones to move
- True
- respiratory system
- ribs
- blood
- small intestine
- thigh bone
- True
- lung
- cleaning the blood
- skull
- respiratory system
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