Are you ready to make some noise? It"s International Rock Day! Wait, not that sort of rock. On this day, we"re all about granite, limestone and slate. There are three types of rock: igneous are formed from solidified magma and lava; sedimentary rocks are layers of sedimentary particles such as sand; and metamorphic rocks are the result of heat and pressure on other kinds of rock.
International Rock Day
Today in History
More Desktop Wallpapers:
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Red maple
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Ring-tailed lemur
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Rebels of the owl world
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Fisgard Lighthouse National Historic Site
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Dragon tails trail to the sea
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Big rocks, big heads, still counting?
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When being in a rut is OK
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Monfragüe National Park, Cáceres, Extremadura, Spain
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Waitangi Day in New Zealand
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International Cheetah Day
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Mothers Day
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Protecting the gentle giants
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Flooded crypt, Basilica of San Francesco, Ravenna, Italy
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Capilano Suspension Bridge Park, Vancouver, British Columbia
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A young bull moose, Denali National Park, Alaska, United States
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A public restroom or a tourist spot?
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All hail the mighty mangrove!
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Striated heron on a Victoria water lily, Pantanal, Brazil
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World Teachers Day
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Do pandas enjoy winter?
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Arches National Park, Utah, USA
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Bathing boxes at Brighton Beach, Australia
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Tulips, Netherlands
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Sandstone formations in the badlands near Caineville, Utah, United States
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Lets protect our turtles
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Polar bear season in Manitoba
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Spine-cheeked anemonefish
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A street filled with sakura trees
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An old bridge in a new light
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Dare to tread through the fairy flower?
Bing Wallpaper Gallery

