Rocks
The crust is made from what
Rocks
Do rocks stay the same forever
no
Sediments often collect at the bottom of what
lakes and ocean
When rocks are pushed deep enough down into the Earth the form into what
Molten rocks
What happens when rocks are pushed down deep into Earth
Grains and minerals can be stretched squashed and slightly melted
Depending on the way a rock has formed it will belong to which groups
igneous sedimentary metamorphic
What are the gaps between different grains
Pores
Sedimentary rocks are made up of what
grains
How long does lava take to cool down
What are rocks made of?
Minerals
How could rocks melt?
Extreme Heat
Weathering does what
They gradually break down into smaller pieces by water ice wind plants and animals
Igenous rocks form when what
magma or lava cools
What are minerals
Chemical Compounds
Rocks can be compacted together and...
pushed deep into the Earth
If the pores connect what happens
Water Air and Oil can flow through the rock and the rock is called permeable
Obsidan or volcanic glass so quickly that
You cant see any crystals at all
Some rocks of interlocking...
Mineral Crystals
What is the deepest rock?
Metamorphic Rock
Magma deep within the Earth takes how long to crystallize
Thousands of years
The minerals iin the metamorphic rock depends on what
The type of rock you start with or the amount of heat and pressure