{"id":210,"date":"2021-04-12T12:23:52","date_gmt":"2021-04-12T10:23:52","guid":{"rendered":"https:\/\/kids.esa.int\/lessons_day_night_and_the_seasons\/"},"modified":"2026-10-08T00:25:30","modified_gmt":"2026-10-07T22:25:30","slug":"lessons_day_night_and_the_seasons","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/lessons_day_night_and_the_seasons\/","title":{"rendered":"P\u00e4iv\u00e4, y\u00f6 ja vuodenajat"},"content":{"rendered":"<div class=\"lede\">\n<p>Maapallolta kest\u00e4\u00e4 365 p\u00e4iv\u00e4\u00e4, eli kokonainen vuosi, suorittaa yksi kierto Aurinkon ymp\u00e4ri! T\u00e4n\u00e4 aikana muutoksia voidaan havaita ja tuntea: esimerkiksi p\u00e4iv\u00e4t ovat lyhyempi\u00e4 tai pidempi\u00e4 ja l\u00e4mp\u00f6tilat korkeampia tai matalampia.\u00a0 N\u00e4it\u00e4 toistuvia s\u00e4\u00e4olosuhteiden kiertoja maapallolla kutsutaan vuodenaikoiksi. Mutta tiesitk\u00f6, ett\u00e4 koemme eri vuodenaikoja sen mukaan, kuinka paljon auringonvaloa saamme? Auringonvalo keskittyy joihinkin paikkoihin enemm\u00e4n kuin toisiin, ja siksi jotkut paikat ovat l\u00e4mpim\u00e4mpi\u00e4 kuin toiset eri vuodenaikoina.<\/p>\n<p>Samalla kun Maa kiert\u00e4\u00e4 Aurinkoa, se py\u00f6rii my\u00f6s ymp\u00e4ri omaa akseliaan kerran 24 tunnissa! Juuri t\u00e4m\u00e4 py\u00f6riminen aiheuttaa Maan p\u00e4iv\u00e4n ja y\u00f6n. \u201cYksi p\u00e4iv\u00e4\u2019 vastaa itse asiassa aikaa, jonka Maa tarvitsee py\u00f6rim\u00e4\u00e4n kerran oman akselinsa ymp\u00e4ri, ja se sis\u00e4lt\u00e4\u00e4 sek\u00e4 p\u00e4iv\u00e4n ett\u00e4 y\u00f6n!<\/p>\n<\/div>\n<h2>Katso<\/h2>\n<p>Tutustutaanpa tarkemmin siihen, miten Maa on vuorovaikutuksessa Auringon kanssa:\u00a0<\/p>\n<figure class=\"wp-block-embed is-type-video\"><iframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/TagG32gwiBo\" title=\"YouTube-videosoitin\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/figure>\n<h2>Tietokilpailu<\/h2>\n<figure class=\"wp-block-embed is-type-video\"><iframe src=\"https:\/\/paxigames.esa.int\/Games\/Trivia\/trivia.html?lan=en&#038;topic=13\" width=\"900\" height=\"500\" scrolling=\"no \"allowfullscreen=\"true\" webkitallowfullscreen=\"true\" mozallowfullscreen=\"true\" ><\/iframe><\/figure>","protected":false},"excerpt":{"rendered":"<p>The Earth takes 365 days, 1 whole year, to complete one orbit around the Sun! Over this period of time, changes are seen and felt, for example, days are shorter [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2017\/01\/day_night_and_season\/17892834-2-eng-GB\/Day_night_and_season.png","esa_banner_description":"","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/01\/Day_night_and_season","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[10,36],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-210","post","type-post","status-publish","format-standard","hentry","category-learn","category-lessons","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/210","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/comments?post=210"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/210\/revisions"}],"predecessor-version":[{"id":1353,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/210\/revisions\/1353"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=210"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=210"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=210"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=210"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=210"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=210"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=210"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=210"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=210"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=210"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}