Rocks. They are made in a variety of ways, but …. … most of them start out in the mantle. And this is how they get out. Igneous rocks are formed when lava or magma cools down and solidifies. If the lava or magma cools QUICKLY it has SMALL crystals.
They are made in a variety of ways, but …
And this is how they get out
If the lava or magma cools QUICKLY it has SMALL crystals
If the lava or magma cools SLOWLY it has BIG crystalsThese rocks are Igneous rocks
Which one has crystals you can see? How did it cool?
Pressure from rocks above… solidifies
…and heat from magma nearbyMetamorphic rocks
Metamorphic rocks are formed by the combined effect of heat and pressure on other rocks:
I was sand-stone
I was limestone
Did you know I was once clay?
2) Transportation solidifies
4) BurialSedimentary rocks
How sedimentary rocks are formed:
1) Weathering and erosion