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