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