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A rock made from cooled magma or lava?
Igneous rock is formed from solidified and cooled magma or lava.
What rocks are formed from molten rock that has solidified?
Igneous rocks, which come in many different forms.
Is obsidian extrusive rock?
No. Obsidian is volcanic glass. Glass is amorphous and thus noncrystalline.
Is sedimentary rock made from solidified lava?
Rock that is formed from volcanoes are igneous rocks. Sedimentary rocks are formed from other layers of grains that are heaving and over millions of years have enough weight squish the grains into a proper rock. This is why the newest rocks are found at the top of layers.
Is obsidian a sedimentary rock igneous rock or a metamorphic rock?
obsidian is an igneous rock, it is not formed from sediment, or a rock going under heat and pressure for the second time it is formed when a volcano erupts and it cools very quickly giving it a smooth glossy surface like glass.
A type of rock formed by molten rock solidified?
igneous rock
A rock made from cooled magma or lava?
Igneous rock is formed from solidified and cooled magma or lava.
What makes an igneous rock?
Solidified magma or lava is igneous rock.
The solidified lava of a volcano belongs to which rock family?
The solidified lava of a volcano belongs to the igneous rock family. These rocks form from the solidification and crystallization of molten magma.
What rocks are formed from melted rock that has cooled and solidified?
Igneous rocks are formed from melted rock that has cooled and solidified. Examples include granite, basalt, and obsidian.
Buoyant force of a rock submerged in water compared to the weight of the water displaced by the rock?
The buoyant force acting on the rock submerged in water is equal to the weight of the water displaced by the rock. This is known as Archimedes' principle, which states that the buoyant force on an object is equal to the weight of the fluid it displaces.
What is igneous rock made of?
Solidified magma or lava.
How does the buoyant force of a rock emerged in water compare to the weight of the water displaced by the rock?
The buoyant force acting on a rock in water is equal to the weight of the water displaced by the rock, as described by Archimedes' principle. This means that the buoyant force is equal to the weight of the volume of water that is pushed aside by the rock when it is submerged.
What is a igneaus rock?
Igneous rock is a rock that has solidified from previously melted material.The word from ignis meaning fire in the original Greek.Subdivided into Plutonic, which have solidified underground, and Volcanic which erupt as liquid (and ash) from the earth's surface.
Why does a rock has to sink?
A rock sinks because it is not buoyant. Buoyancy is whether or not something floats in water. There are three levels of buoyancy; buoyant, neutrally buoyant, and not buoyant. When something is buoyant, that means it has a lower density than water, causing it to float. When something is neutrally buoyant, that means it has roughly the same density as water, causing it to float half way between the bottom and the surface. Finally, when something is not buoyant (like a rock), that means that it has a higher density than water, causing it to sink to the bottom.
Does Petros mean pebble or rock in Greek?
Petros means a collection of small rocks/pebbles. Typically, this collection is solidified into one larger rock. It's basically a rock made up of smaller solidified pebbles.
In what order does magma become a rock?
Magma forms from heated rock--it cools--minerals form--when totally solidified it is a rock.
