This document describes a simple experiment to demonstrate the principles of inhalation and exhalation using common household items. The experiment involves cutting off the bottom of a plastic bottle and attaching a rubber sheath. Two small balloons are inserted into the bottle through a drinking straw to represent lungs. Pulling the rubber sheath outward fills the balloons with air to demonstrate inhalation, while pushing it inward releases air from the balloons to demonstrate exhalation.
1 of 3
Download to read offline
More Related Content
069 breathing mechanism
1. 069 BREATHING MECHANISM
To study the principles of Inhalation and exhalation
MATERIALS REQUIRED
Plastic bottle
2 small balloons
Drinking straw
Little dough made from flour
Rubber sheath
2. Take a bottle, cut the base and attach the rubber tightly to the base of the
bottle.
Insert the straw with two small rubber balloons into the bottle and seal the
extra openings by dough.
When the rubber base is pulled outwards, the balloon gets filled with air to
show inhalation.
When the rubber base is pushed inwards, the air is released to show
exhalation
