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