WorksheetsUnderstanding the Respiratory System
Total questions: 10
Worksheet time: 5mins
What is the main function of the respiratory system?
To help us see
To help us hear
To help us breathe
To help us digest food
What gas do our lungs take in from the air?
Carbon Dioxide
Nitrogen
Oxygen
Hydrogen
What gas do our lungs expel when we breathe out?
Oxygen
Carbon Dioxide
Nitrogen
Methane
What are the two main phases of breathing?
Eating and Drinking
Inhalation and Exhalation
Running and Walking
Sleeping and Waking
What are the two main components of the respiratory system mentioned in the video?
Heart and Brain
Stomach and Liver
Lungs and Airway
Kidneys and Bladder
Through which two parts of the body does air first enter when we breathe in?
Eyes and Ears
Nose and Mouth
Hands and Feet
Stomach and Intestines
Which part of the respiratory system contains the vocal cords?
Pharynx
Trachea
Larynx
Bronchi
What are the tiny air sacs in the lungs where gas exchange occurs called?
Bronchioles
Alveoli
Trachea
Larynx
What happens to healthy lungs when we breathe in tobacco smoke or very polluted air?
They turn pinker
They grow larger
They turn brown and stop working properly
They become stronger
What are two ways to keep your lungs healthy?
Eating unhealthy food and sleeping a lot
Avoiding exercise and smoking
Doing lots of physical exercise and never smoking
Watching TV all day and drinking sugary drinks
