Photosynthesis is a biochemical process. Plants produce oxygen, but how does it work? And how was this process discovered? This and more you will learn in this video.
© explainity ®
How does the ecosystem in a bottle work? The photosynthesis of plants converts water and carbon dioxide into atmospheric oxygen and carbohydrates. The resulting oxygen and carbohydrates are converted back into water and carbon dioxide by tiny organisms living in the soil. Just like this cycle, many others (nitrogen cycle, water cycle, etc.) take place in your bottle.
Overview
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Suitable for age group: 6-99 years
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Especially interesting for: Kids and young adults, gift makers,
plant lovers and hobby gardeners -
Preparation time: about 1 hour
Material
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You need:
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1 airtight sealable glass
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Some gravel or sand
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A few small pieces of charcoal or lava granules
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Unfertilized flower or garden soil or coconut soil
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Small tropical and shade-loving plants
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Some moss
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Some tap water
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Stones, figures etc. to decorate the glass (optional)
Step 1:
Fill gravel or sand into the glass
The lowest layer allows the water to be absorbed toward the bottom. For this purpose, fill gravel or sand into the sealable glass to cover the floor. This prevents waterlogging and your plants' roots won't become too wet.
Step 2:
Put the coal on top of the lowest layer
The charcoal has a disinfecting effect and serves to kill harmful microorganisms and bacteria. For this purpose, place a few pieces of charcoal on the sand or gravel.
Alternative
You can use lava granules instead of gravel/sand and charcoal if available.
Step 3:
Planting the plants into the soil
Fill unfertilized flower, garden or coconut soil onto the lower layers. Various smaller tropical and shade-loving plants can be planted here. You can now lay moss on the places where the substrate is uncovered, so that the moisture is retained in the soil.
Step 4:
Watering and sealing
Finally, add some tap water.
You can now decorate the glass from the inside (optional).
Then close and seal your glass.
Step 5:
Finding a balance
It can take a few days until your garden is in balance.
Observe it and open or water it as needed.
Once your eternal garden is in balance, there is no need to water it anymore.
The right amount of water in the glass:
There are always a few drops of water on the lid and in the glass.
Too much water in the glass:
If the inside of the jar is steamed up, you can open it for a few hours to allow excess water to evaporate.
Too little water in the glass:
If no drops are visible on the lid or the edge of the glass, open the glass and pour a little water.
Have fun with your
eternal garden!
Related Links
Created by Jennifer Reiter
Naturkundemuseum Bayern
Botanisches Institut
Menzinger Str. 67
80638 München, Germany
BIOTOPIA Lab:
Phone: +49 (0)89 178 61-411
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