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Project
Develop a bottle garden by planting a growing plant like spider plant or jade plant in a large transparent bottle. After growing the plant properly for some time, seal the mouth of the bottle. Observe the growth of the plant. If the plant grows well, it is maintaining the exchange of gases — the carbon dioxide from respiration is used for photosynthesis, and the oxygen from photosynthesis is used in respiration.
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Key Points
A sealed bottle garden keeps growing because its gases are recycled inside.
Key Points
- Plant a spider or jade plant in a large clear bottle.
- Let it grow well, then seal the bottle's mouth.
- The plant respires and gives out carbon dioxide.
- It uses that carbon dioxide for photosynthesis in light.
- The oxygen it makes is used again in respiration.
- So the same gases keep cycling and the plant survives.
A bottle garden shows photosynthesis and respiration balancing each other.
