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Floating needle

Floating needle. piece of tissue paper - bibułka sewing needle -igła plate full of water – talerz z wodą. Place the sewing needle on the small piece of the tissue paper. The tissue paper will become soaked with water and sink to

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Floating needle

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  1. Floating needle

  2. piece of tissue paper - bibułka • sewing needle -igła • plate full of water – talerz z wodą

  3. Place the sewing needle on the small piece of the tissue paper. The tissue paper will become soaked with water and sink to The botoom of the plate, leaving the needle floating on the surface.

  4. Surface tension is a phenomenon in which the surface of a liquid, where the liquid is in contact with gas, acts like a thin elastic sheet. This term is typically used only when the liquid surface is in contact with gas (such as the air). If the surface is between two liquids (such as water and oil), it is called "interface tension." Igła pływa na powierzchni wody dzięki napięciu powierzchniowemu wody. Na powierzchni wody tworzy się „błonka”, która utrzymuje na powierzchni igłę. Tę właściwość wykorzystuje pająk nartnik.

  5. The end class II a Szkola Podstawowa nr 13 Olsztyn

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