The Coming of Life
The Carboniferous Period
The land plants developed greatly
but they still did not have flowers
or fruits. They had huge trunks
with small leaves at the top.
The lowlands were covered with
these strange forests which became
great swamps when the shallow
seas flooded and recede.
Buried under water the trees died and
from them peat moss was formed.
After centuries and centuries these
trees turned into coal. There are
constantly new forests and new floods.
Iron deposits were also being formed
in the earth. Now that the air had been
purified by the plants, some animals were
able to leave the water and learn to live
on land. These were the amphibians,
first vertebrates to live on land.
At this time there were so many
giant insects. Some dragonflies
had a thirty inch wing spread.
Pinegreenwoods Montessori
The Coming of Life
but they still did not have flowers
or fruits. They had huge trunks
with small leaves at the top.
The lowlands were covered with
these strange forests which became
great swamps when the shallow
seas flooded and recede.
Buried under water the trees died and
from them peat moss was formed.
After centuries and centuries these
trees turned into coal. There are
constantly new forests and new floods.
Iron deposits were also being formed
in the earth. Now that the air had been
purified by the plants, some animals were
able to leave the water and learn to live
on land. These were the amphibians,
first vertebrates to live on land.
At this time there were so many
giant insects. Some dragonflies
had a thirty inch wing spread.
Pinegreenwoods Montessori
The Coming of Life
