A series of free Science Lessons for 7th Grade and 8th Grade, KS3 and Checkpoint Science in preparation for GCSE and IGCSE Science.
When you inhale:
Model of a lung
This model shows how the action of the diaphragm changes the air pressure and inflates and deflates the lungs. In the real body, the ribs (represented by the plastic bottle also moves).
Investigating Vital Capacity
The vital capacity is the maximum amount of air that can be forcibly exhaled after breathing in.
You can investigate your vital capacity by exhaling into a graduated plastic bottle full of water and measuring tha volume of air that is collected.
Try the free Mathway calculator and
problem solver below to practice various math topics. Try the given examples, or type in your own
problem and check your answer with the step-by-step explanations.
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