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