模板:Nature

Elements of nature

Universe	Space Time Matter Energy

Earth	Earth science Future of the Earth Gaia hypothesis Geological history of Earth Geology History of the Earth Oceans Plate tectonics Structure of the Earth

Weather	Atmosphere of Earth Climate Clouds Meteorology Sunlight Tides Wind

Environment	Ecology Ecosystem Wilderness Wildfires

Life	Biology Eukaryota Plants/Flora Animals/Fauna Fungi Protista Evolutionary history of life Extraterrestrial life Hierarchy of life Organism Origin of life Prokaryotes Archaea Bacteria Viruses

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