{"id":1917,"date":"2026-04-10T08:17:02","date_gmt":"2026-04-10T05:17:02","guid":{"rendered":"https:\/\/blog.edu.turku.fi\/scienceed\/?p=1917"},"modified":"2026-04-10T08:17:02","modified_gmt":"2026-04-10T05:17:02","slug":"flytande-blommor-och-ytspanning","status":"publish","type":"post","link":"https:\/\/blog.edu.turku.fi\/scienceed\/2026\/04\/10\/flytande-blommor-och-ytspanning\/","title":{"rendered":"Flytande blommor och ytsp\u00e4nning"},"content":{"rendered":"<p><em>Vad har du sett flyta eller hoppa p\u00e5 vattenytan? <\/em><\/p>\n<h2>Steg 1 Material<\/h2>\n<ul>\n<li>Papper<\/li>\n<li>Pennor<\/li>\n<li>Sax<\/li>\n<li>En stor platt beh\u00e5llare<\/li>\n<li>Vatten<\/li>\n<li>Ullgarn<\/li>\n<li>Tv\u00e5l<\/li>\n<li>Tv\u00e5 plastmuggar<\/li>\n<\/ul>\n<h2>Steg 2 Genomf\u00f6rande<\/h2>\n<p>L\u00e5t oss b\u00f6rja med att f\u00f6rbereda blommorna.<\/p>\n<ul>\n<li>Rita en blomma p\u00e5 ett papper med en mittdel st\u00f6rre \u00e4n kronbladet.<\/li>\n<li>Klipp ut blomman fr\u00e5n pappret. Blomman kan dekoreras med kritor.<\/li>\n<li>Vik blombladen in\u00e5t i ordning.<\/li>\n<li><strong>Fundera p\u00e5:<\/strong> Flyter blomman i vattnet?<\/li>\n<li>L\u00e4gg blommorna i vattnet<\/li>\n<li><strong>Fundera p\u00e5:<\/strong> Varf\u00f6r \u00f6ppnar blommorna sig i vattnet?<\/li>\n<\/ul>\n<h2>Steg 3: Varf\u00f6r<\/h2>\n<p>Blomman \u00f6ppnas p\u00e5 grund av kapill\u00e4reffekt. Papperets struktur har sm\u00e5 r\u00f6r genom vilka vatten kan tr\u00e4nga in att f\u00e4rdas upp\u00e5t. Detta f\u00e5r blomman att \u00f6ppna blombladen.<\/p>\n<h2>Steg 4 Genomf\u00f6rande<\/h2>\n<p>Vad h\u00e4nder med ullgarn om det l\u00e4ggs i en plastmugg med vatten?<\/p>\n<ul>\n<li>Anv\u00e4nd tv\u00e5 plastmuggar, den ena med bara vatten i den andra med lite tv\u00e5l i.<\/li>\n<li>Vad h\u00e4nder? Varf\u00f6r?<\/li>\n<\/ul>\n<h2>Steg 5 Varf\u00f6r<\/h2>\n<p>Tv\u00e5len minskar vattnets ytsp\u00e4nning och g\u00f6r att ullgarnet blir v\u00e5tare och sjunker. till jordens botten.<\/p>\n<p>&nbsp;<\/p>\n<p><em>K\u00e4lla: <a href=\"https:\/\/www.finlandiakirja.fi\/fi\/kirsi-rehunen-tiedeleikkeja-pikkututkijoille-c88c2a?srsltid=AfmBOooTzS_Il8650uQv9QnGv_5pRn07t65w5Y0jkTsrajUHgsBnGAJp\">Rehunen, Kirsi. Tiedeleikkej\u00e4 pikkututkijoille<\/a>.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vad har du sett flyta eller hoppa p\u00e5 vattenytan? Steg 1 Material Papper Pennor Sax En stor platt beh\u00e5llare Vatten Ullgarn Tv\u00e5l Tv\u00e5 plastmuggar Steg 2 Genomf\u00f6rande L\u00e5t oss b\u00f6rja med att f\u00f6rbereda blommorna. Rita en blomma p\u00e5 ett papper med en mittdel st\u00f6rre \u00e4n kronbladet. Klipp ut blomman fr\u00e5n pappret. Blomman kan dekoreras med &hellip; <a href=\"https:\/\/blog.edu.turku.fi\/scienceed\/2026\/04\/10\/flytande-blommor-och-ytspanning\/\" class=\"more-link\">Forts\u00e4tt l\u00e4sa<span class=\"screen-reader-text\"> \u201dFlytande blommor och ytsp\u00e4nning\u201d<\/span><\/a><\/p>\n","protected":false},"author":2590,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[218561,4843,218347],"tags":[],"class_list":["post-1917","post","type-post","status-publish","format-standard","hentry","category-experiment","category-kemi","category-veckans-ide"],"_links":{"self":[{"href":"https:\/\/blog.edu.turku.fi\/scienceed\/wp-json\/wp\/v2\/posts\/1917","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.edu.turku.fi\/scienceed\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.edu.turku.fi\/scienceed\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.edu.turku.fi\/scienceed\/wp-json\/wp\/v2\/users\/2590"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.edu.turku.fi\/scienceed\/wp-json\/wp\/v2\/comments?post=1917"}],"version-history":[{"count":1,"href":"https:\/\/blog.edu.turku.fi\/scienceed\/wp-json\/wp\/v2\/posts\/1917\/revisions"}],"predecessor-version":[{"id":1918,"href":"https:\/\/blog.edu.turku.fi\/scienceed\/wp-json\/wp\/v2\/posts\/1917\/revisions\/1918"}],"wp:attachment":[{"href":"https:\/\/blog.edu.turku.fi\/scienceed\/wp-json\/wp\/v2\/media?parent=1917"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.edu.turku.fi\/scienceed\/wp-json\/wp\/v2\/categories?post=1917"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.edu.turku.fi\/scienceed\/wp-json\/wp\/v2\/tags?post=1917"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}