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