All About Rocks by Maya A J

1. All About Rocks by Maya A J There are igneous, metamorphic and sedimentary rock igneous rock come out of volkanothe rock s are thay are hot in the volkano

2. Sedimentary rocks sedimentary rocks are rocks which are formed by the accumulation of sediments, subjected to physical and chemical processes (diagenesis), give rise to more or less consolidated material. Can be formed on the banks of rivers, deep ravines, valleys, lakes, seas, and at the mouths of rivers.

3. Igneous rock Have you ever wondered what happens when lava cools? Igneous rock forms, of course. The mantle of the Earth is very hot, but it remains solid because it’s under intense pressure. Sometimes, though, the pressure may ease. When this happens, the mantle melts and becomes magma, or hot, liquid rock. The magma cools slowly over millions of years and forms hard rock, such as granite. Rocks that form from magma are known as intrusive igneous rock because they form beneath the ground.

4. Metamorphic rock - Metamorphic rock is the transformation of an existing rock.- Metamorphic rocks could come from sedimentaryrocks, igneousrocks, or another older metamorphic rock.- Metamorphic rocks are made by intense heat and pressure.- The heat can be from 150 °C to 200 °C.- Metamorphic rocks make up most of the Earth's crust.- Metamorphic rocks are classified by texture and by how the chemicals and minerals are put together.