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VOLCANOES
Volcanoes are mountains
There are many mountains in the world.
Not all mountains are the same
Some mountains have fire inside:
These mountains are called…
VOLCANOES!!!
And they do this:http://www.youtube.com/watch?v=R0Zbj7S22zs
Why?
Because some things get excited and explode when they get too hot.
Solids, liquids and gases
To find out why think about solids, liquids, and gases. These are solids. You can touch them when they are cool.
Now they are liquids
If you heat ice, it becomes water:
(and if you heat water it becomes a gas):
If you heat metal a lot, it can also become a liquid…
What about rock?
When rock is hot it can become lava:
An eruption!!!
And when the lava gets really hot it makes lots of gas called CO2. This gas gets excited and wants to escape, so it explodes out of the volcano.
This is inside a volcano
Look here for more information:http://www.youtube.com/watch?v=2M5JQDdardM