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