What is plate tectonics? Earthquakes and volcanoes
Plate tectonics: The world as seen from space (flattened out) The continents move around When you look at a map of the world, it seems as though it was always [...]
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09, 2017
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08, 2017
What is snow? Weather – Earth science
If it's colder, rain may fall as snow. About two and a half billion years ago, the Earth finally cooled down enough for it to snow for the first time. Most of the [...]
20
08, 2017
What makes thunder and lightning? – Weather science
A bolt of lightning in the sky Hot air and cold air are constantly moving around the Earth, as the hot air rises and the cold air sinks - that's what [...]
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07, 2017
Ibn Sina – Islamic medicine
Where ibn Sina came from: Uzbekistan Ibn Sina and the Samanids in Uzbekistan Ibn Sina (known to Europeans as Avicenna) was a scientist. He was born about 980 AD in the north-eastern part of [...]
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06, 2017
Where are the Ural Mountains?
Ural Mountains in Russia Ural Mountains in Central Asia The Ural Mountains run from north to south through Central Asia. They separate Europe from Asia. Like the Appalachian Mountains, the [...]
25
06, 2017
Where are the Rocky Mountains?
Rocky Mountains The Rocky Mountains stretch all the way from the southern United States north into Canada. They through Utah, Colorado, Wyoming, Montana, and up into Alberta. What we call [...]
25
06, 2017
Which mountains are the highest?
Up in the Alps in Switzerland Which mountains are the highest in the world? Practice graphing and see how much higher some mountain chains are than others. The highest peaks [...]
25
06, 2017
Where are the Appalachian mountains?
The Appalachian Mountains When did the Appalachian Mountains form? About 300 million years ago, near the end of the Carboniferous period, when the first reptiles were evolving, the tectonic plates [...]
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06, 2017
Where are the Andes Mountains? South America
The Andes mountains run down the Pacific side of South America When did the Andes form? About 199 million years ago, near the beginning of the Jurassic period, was the [...]
