Carboniferous

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25 06, 2017

Where are the Ural Mountains?

By |2019-09-15T07:03:36-07:00June 25th, 2017|Central Asia|4 Comments

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 Urals formed about 300 million years ago. That was near the end of the Carboniferous period, when the first reptiles were evolving. It [...]

25 06, 2017

Where are the Rocky Mountains?

By |2018-04-21T11:56:41-07:00June 25th, 2017|Geology, North America|0 Comments

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 the Rocky Mountains is really three different mountain chains, one on top of the other. The oldest mountain chain started more than a [...]

25 06, 2017

Where are the Appalachian mountains?

By |2019-01-29T05:37:18-07:00June 25th, 2017|Geology, North America|0 Comments

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 began to form the supercontinent of Pangaea. More about plate tectonics The Carboniferous period All our geology articles How high were the Appalachians [...]

23 06, 2017

Carboniferous Period – Geology

By |2019-02-28T09:47:59-07:00June 23rd, 2017|Geology|0 Comments

Dragonfly When was the Carboniferous period? With the end of the Devonian period about 359 million years ago, the Carboniferous period got started. More about the Devonian Quick summary of geological eras All our geology articles What was the Earth like then? Most of the land on Earth was warm and swampy, which [...]

1 06, 2017

What is carbon dioxide? Molecules and Chemistry

By |2019-02-28T09:28:34-07:00June 1st, 2017|Chemistry|0 Comments

Tobacco plants growing put carbon dioxide molecules back into the air - like all plants What is carbon dioxide made of? Carbon dioxide is one of the simplest and commonest molecules in the universe. It has only three atoms - one carbon and two oxygen atoms. More about carbon What is a molecule? All [...]

1 06, 2017

History of Coal – Central Asian science

By |2018-09-27T06:43:01-07:00June 1st, 2017|Central Asia, Science|0 Comments

History of coal: These are lumps of coal What is coal made of? Most of the coal on Earth formed during the Carboniferous Period about 350 million years ago, when giant ferns growing in wetlands were flooded and buried under a blanket of mud before they could rot. What happened in the Carboniferous [...]

30 05, 2017

What are conifers? Pine trees, gymnosperms

By |2019-07-31T12:58:59-07:00May 30th, 2017|Biology|0 Comments

Pine trees - A Spruce tree is a type of gymnosperm and conifer Too dry for ferns and moss Near the end of the Carboniferous period, about 300 million years ago, the land on Earth got a lot drier than it had been before. It was drier because plate tectonics was bringing all of [...]

29 05, 2017

What are ferns? Plant biology and evolution

By |2019-06-08T06:49:11-07:00May 29th, 2017|Biology|0 Comments

What are ferns? Ferns growing in a forest  When did ferns evolve? The first ferns - the first plants that had leaves - evolved from plants that were more like moss. Ferns evolved about 360 million years ago, during the Carboniferous Period. Earlier plants: moss Carboniferous Period All our biology articles Where do ferns [...]

29 05, 2017

What are cycads? Evolution and Biology

By |2018-04-16T10:33:47-07:00May 29th, 2017|Biology|0 Comments

Cycad trees. They look like palm trees but they are very different! At the end of the Carboniferous period, about 300 million years ago, the only kinds of plants on Earth were mosses and ferns. Some of the ferns were giant ferns as big as trees are now. Then in the late Carboniferous [...]

26 05, 2017

Mollusks and cephalopods – Biology

By |2019-09-16T05:37:52-07:00May 26th, 2017|Biology|4 Comments

Evolution of mollusks: Slugs are a kind of mollusk. When did the first mollusks appear? Mollusks are animals like mussels, clams, snails and slugs. Their name means "soft", because mollusks don't have any skeletons. The first mollusks probably evolved from early segmented worms around 500 million years ago.  That was in the Cambrian period. At [...]