Invent a device (made of electrical appliances and scrap materials) that allows you to compare the abundance
| November 9, 2020 | Education
Invent a device (made of electrical appliances and scrap materials) that allows you to compare the abundance of spores in the air in the forest, over a plowed field and meadow.
Vacuum cleaner, pump sucks in air. If you put filters in them, you can collect spores in the sucked air on them.
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