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