Three types of rock- science poem

Rocks

Three types of rock,
Are a must,
These types of rocks,
Make Earth's crust...
earth
Igneous rocks,
When lava halts,
Are volcanic rocks,
Like basalts...
basalt rock
Sedimentary rocks,
Should it be known,
Compressed like coal,
Or limestone...

Metamorphic rock,
Made by change,
Of temp and pressure,
Run a range...
sedeimentary rock
4 billion years?
Rock's been here!
I don’t think,
They’ll disappear!
Used for tools,
From times of old,
They may be ores,
With lead or gold...
4 billion years,
Of rocks, I said,
Used by Flintstones,
One called Fred...
fred
Here's some good advice,
I read...
Don't let rocks,
Fall on your head!

Watch Mr. R.'s 3 types of rocks music video!

Rocks:
The Earth’s outer layer is made of three different types of rock:
1. Igneous rock- formed by cooling of magma or lava (granite, basalt).
2. Sedimentary rock- formed when material from the Earth’s crust is deposited and hardens in water (limestone, coal, shale).
3. Metamorphic rock- formed when Igneous and Sedimentary, and other metamorphic rocks are changed by high temperature and pressure (marble, slate, schist).
Geologists are scientists that study the Earth’s crust and how it is shaped and how it changes. If you’d like to study rocks and minerals, study geology!
Ores are types of rocks that have elements inside of them. For example rocks may contain iron, lead, magnesium, and of course silver, and gold.
Rocks have been used as tools for millions of years.

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