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What process causes a rock with sharp edges to have rounded edges?
The process is called erosion, which involves the wearing away of rock surfaces through the action of water, wind, or ice over time. As the rock is exposed to these agents, they slowly break down the sharp edges, smoothing and rounding them in the process.
What sedimentary rock made up of rock fragments with sharp edges?
Conglomerate is a sedimentary rock made up of rock fragments with sharp edges, typically larger than 2 millimeters in size. These fragments are bound together by a matrix of finer-grained material, such as sand or clay.
What is a volcanic rock that northeastern California Indians used to make weapons tools jewelry and traded?
Obsidian is a volcanic rock that northeastern California Indians used to make weapons, tools, and jewelry. It was also a valuable item for trade due to its sharp edges and distinctive appearance.
Jolene is comparing a rock from a riverbed and a rock from deep underground one is very smooth the other has very sharp edges explain which rock was probably found in each location?
The rock that is very smooth is most likely the one that was found in riverbed because the river would probably toss the rock around and weather it down until it is smooth. Therefore, that means that the other rock was most likely found underground.
What is a extrusive rock that is actually glass?
Obsidian is an extrusive rock that is a naturally occurring volcanic glass. It occurs when lava extrudes from a quickly cooling volcano, causing little crystal growth.
What rock has sharp edges?
Rocks that have sharp edges are often formed from the cooling and solidification of magma. These cooling processes can occur quickly, resulting in the formation of sharp edges and angular shapes. Some examples of rocks that may have sharp edges include basalt, obsidian, and flint.
What is a shard of wood?
The definition of a shard is a piece of broken ceramic, metal, glass, or rock, typically having sharp edges. So with that definition, I would say that a shard of wood just means a piece of broken wood having sharp edges. If you are referring to the crossword puzzle hint, the answer is splinter.
What process causes a rock with sharp edges to have rounded edges?
The process is called erosion, which involves the wearing away of rock surfaces through the action of water, wind, or ice over time. As the rock is exposed to these agents, they slowly break down the sharp edges, smoothing and rounding them in the process.
What sedimentary rock made up of rock fragments with sharp edges?
Conglomerate is a sedimentary rock made up of rock fragments with sharp edges, typically larger than 2 millimeters in size. These fragments are bound together by a matrix of finer-grained material, such as sand or clay.
How do you know if a rock has been in a river?
The force of the water will have worn it smooth, with no sharp edges.
What is an example of volcanic glass?
Obsidian is a common example of volcanic glass. It is formed when molten lava cools rapidly, creating a glassy black or dark-colored rock. Obsidian is often used in jewelry and as a cutting tool due to its sharp edges.
Is pumice has no grain?
Pumice is so fine grained, it actually doesn't have a grain--because it is a natural volcanic glass. The rough texture is caused by the vesicular nature of the rock--trapped pockets of gas bubbles with sharp glassy edges.
Why do river stones round out?
Sharp edges are knocked off by the tumbling effect created by moving water, much as a mechanical rock polisher does via a rotating drum. As more and more sharp edges are rounded, and as the rock is abraded by much smaller rock particles being transported by running water, the effect is a rounded smoothed rock surface.
What type of rock is siliceous volcanic glass?
Siliceous volcanic glass is a type of rock known as obsidian. It forms when molten lava cools quickly, preventing the formation of distinct mineral crystals and resulting in a smooth, glassy texture. Obsidian is typically dark in color and is commonly used in tools and jewelry due to its sharp edges and attractive appearance.
Is the flint rock very hard?
Yes, slithers of which, when broken from a bigger lump (known as 'knapping') have sharp cutting edges.
A black rock full of energy is called?
A black rock full of energy is most likely obsidian, which is a natural volcanic glass formed during rapid cooling of lava. Obsidian is known for its sharp edges and ability to hold energy from the Earth.
What are a mix of of sharp angular pebbles?
A sedimentary rock called "breccia". The sharp angular pebbles making up the breccia could be igneous, sedimentary, or metamorphic. Breccias generally form close to the point of origin of the clast rock, having less time to round those sharp angular edges.
