Nature.is articles: Sólin

Með athugunum og lítilli tilraun má sannreyna að plöntur þarfnast sólarljóss. Plöntur í gluggum eða utan við hús skoðaðar.

Hvert teygja þær sig?

Margar plöntur, þar á meðal túnfíflarnir sem eru svo algengir á vorin, opna blómin aðeins þegar sólin skín. Á sólardegi brosa þeir á móti okkur. Dökkri fötu eða kassa hvolft yfir slíkan fífil. Hann athugaður aftur eftir um klukkustund.

Hefur hann lokað blóminu?

Opnast það aftur þegar fatan er tekin?

Birt:

Aug. 1, 2014

Höfundur:

Sigrún Helgadóttir

Uppruni:

Náttúran.is

Tilvitnun:

Sigrún Helgadóttir „Sólin – forsenda lífs“, Náttúran.is: Aug. 1, 2014 URL: http://natturan.is/d/2014/08/01/solin-forsenda-lifs/ [Skoðað:Nov. 30, 2023]

Efni má nota eða vitna í samkvæmt almennum venjum sé heimilda getið með slóð eða fullri tilvitnun hér að ofan.

Family: Child upbringing 84 The Community: Family 150 The Country: Plants 13 Geimurinn: Sólin 8 Barnaherbergið: Leikur og nám 57 Húsið: Leikir 55 Leikir: Útileikir 44 Húsið: Náttúruleikir 32 Sveitin: Villigróður 7

Green Pages

The Community: Family 2 The Country: Plants 2

Messages:

Sustainable tourism

Look for the Nordic Ecolabel the Swan as you pick your accomodation in Reykjavík. Three Reykjavík Hostels have the Swan, Reykjavík City Hostel, Loft Hostel and Reykjavík Downtown Hostel.

Save the Highlands!

The Icelandic Highlands form one of the largest territories in Europe, which has never been inhabited or cultivated. Please help us by signing the petition to save Iceland’s Heart in Peril.

Protect the highland

The Iceland Nature Conservation Association is a conservation NGO, with the primary objective of conserving and protecting the wilderness of Iceland. Become a member and join in the fight for the Icelandic highland!

Volcano Horses

Eldhestar - Volcano Horses takes special pleasure in showing visitors to Iceland the unique wilderness together with the horse. You’ll get to know Iceland’s nature from a totally new perspective.

Certified Organic

The organic certification agency Tún manages the surveillance of organic produce in Iceland. Organic standards require feed and food crops to be grown without the use of pesticides, synthetic fertilizers or GMO’s.

National Park

Join forces to protect the highland! Sign the petition of NGO's for the establishment of a national park in the central highland of Iceland.

Travel safely!

Safetravel.is has essential safety information and tips for your tour in Iceland. Get your 112 Iceland app. If in need of assistance call 112.

Sólin – forsenda lífs