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rocks are formed from grains and grains are small and the rocks are big. Sedimentary rocks are formed when grains or sediments are compacted together.
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Different types of metamorphic rocks are distinguished by the?
arrangement of mineral grains within the rock
Why do some sedimentary rocks contain rounded grains and some not?
Because some sedimentary rocks are made from different kinds of sediments.
What are the properties of sedimentary rock?
sedimentary rocks have layers showing the deposition of sediment at different time periods.sedimentary rocks consists of lots of small grains. these grains maybe weakly and together so the rocks are often porous and maybe soft and crumbly.sedimentary rocks often have fossils trapped with in them.sedimentary rocks consist of layers of lots of small particals.
Why do some igneous rocks have big crystals or grains and some igneous rocks have small crystals or grains?
how long they stayed in the volcano; how much time the crystals had to form
What do most metamorphic rocks form?
Formed From Other Rocks Though High Pressure And High Heat . | Example - Foliated Grains Are Arranged In Parallel Layers Or Bands (Stripes) - Non Foliated Rocks , Grains Are Arranged Randomly.
Are sedimentary rocks easily eroded?
YES! Sedimentary rocks, like sandstone, limestone and chalk can easily be eroded. This is because the grains in them (different to particles) are further apart to the grains in rocks like igneous rocks. This means that the grains can easily be crumbled off, and you get left with sand.
Rough - textured rocks have grains?
yes rough textured rocks do have grains.
Rough texture rocks have grains and fine textured rocks have grains?
Yes m that it true, other than glasses all rocks have grains.
Different types of metamorphic rocks are distinguished by the?
arrangement of mineral grains within the rock
Why do igneous rocks that have the same composition sometimes have different sizes of mineral grains?
This is as a result of difference in the rate of cooling of the Igneous rocks.
Why do some sedimentary rocks contain rounded grains and some not?
Because some sedimentary rocks are made from different kinds of sediments.
Do lava rocks usually have large grains?
No. They are usually fine grained.No, lava rocks do not have large grains they have very small grains.
Which two rocks are made from rounded grains?
Rocks that are composed of rounded grains or fragments are usually sedimentary rocks. Two of these are sandstone and conglomerate rocks.
Where did the small grains of rocks come from?
Older rocks.
What kind of grains do rough textured rocks have?
large grains
What are Properties of sedimentary rock?
sedimentary rocks have layers showing the deposition of sediment at different time periods.sedimentary rocks consists of lots of small grains. these grains maybe weakly and together so the rocks are often porous and maybe soft and crumbly.sedimentary rocks often have fossils trapped with in them.sedimentary rocks consist of layers of lots of small particals.
What are the properties of sedimentary rock?
sedimentary rocks have layers showing the deposition of sediment at different time periods.sedimentary rocks consists of lots of small grains. these grains maybe weakly and together so the rocks are often porous and maybe soft and crumbly.sedimentary rocks often have fossils trapped with in them.sedimentary rocks consist of layers of lots of small particals.
