How can you demonstrate that air occupies space?a)By heating a closed ...
Dipping an inverted bottle into water shows that air occupies space. When the bottle is submerged, the air inside the bottle prevents water from entering, creating bubbles as the air escapes. This simple demonstration effectively proves that air takes up space and cannot be seen but occupies volume.
How can you demonstrate that air occupies space?a)By heating a closed ...
Demonstrating that Air Occupies Space
To understand how air occupies space, we can consider the experiment of dipping an inverted bottle into water. This experiment effectively demonstrates that air takes up space and cannot be compressed easily.
How It Works
- When you take a bottle and turn it upside down, then submerge the opening into a container of water, the water does not fill the bottle completely.
- Instead, air inside the bottle pushes against the water and occupies the space within the bottle.
Key Observations
- **Air Bubbles**: If you were to slowly lift the bottle out of the water, you might see bubbles of air escaping. This shows that air is present and has volume.
- **Water Level**: The water level inside the bottle will remain below the opening, indicating that the air is preventing water from entering. This reinforces the idea that air occupies space.
Why Other Options Are Less Effective
- **Heating a Closed Container**: This demonstrates changes in air pressure rather than the concept of air occupying space.
- **Dry Sponge in Water**: This shows absorption but not the presence of air.
- **Observing Dust Particles in Sunlight**: This indicates air's presence but does not directly illustrate that air occupies space.
In conclusion, option 'C' effectively shows that air occupies space because it visually demonstrates the interaction between air and water, highlighting air's volume and presence in a tangible way.
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