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Earth Sciences
Earth Sciences is the study of the Earth in terms of Geography, Geology, Geophysics, etc. It combines the use of Sciences such as Biology, Chemistry, Physics and Mathematics to understand the Earth System.
34,763 Questions
How do grade the earth science lab practical?
When grading an Earth science lab practical, it is essential to evaluate students based on their understanding of the scientific concepts, their ability to apply these concepts in a practical setting, and their accuracy in conducting experiments and analyzing data. You can use a rubric that includes criteria such as following lab procedures, recording data accurately, demonstrating knowledge of Earth science principles, and drawing appropriate conclusions. Providing constructive feedback on areas of improvement can help students enhance their scientific skills and knowledge for future assessments.
How the granite of a mountain could change first into sandstone and then quartzite?
Granite can change into sandstone through weathering and erosion processes, where the minerals in the granite are broken down into smaller grains and cemented together to form sandstone. Sandstone can then be subjected to heat and pressure, transforming it into quartzite through the process of metamorphism. This involves recrystallization of the minerals within the sandstone, mainly quartz, into a more tightly interlocking crystalline structure, resulting in the formation of quartzite.
At any one time half of the earth has sunlight?
At any one time half of the earth has sunlight and the other half does not. The half that has sunlight experiences day while the other half with no sunlight experiences night. Day and night happens because of earth's rotation.
How cold does it have to be for water to instantly freeze?
It depends on concentration of salt. Adding four tablespoons of salt to a mix of 1 liter of water and a tray of icecubes will thaw the ice while dropping temperature of the mix down to 14 degrees centigrade below zero.
One reason why people should be aware of the impact of their actions on the environment is that?
the environment provides essential resources for human survival, such as clean air, water, and food. Neglecting the impact of our actions on the environment can lead to depletion of these resources and harm both ecosystems and human health. Being aware and taking steps to reduce our environmental impact can help ensure a sustainable future for generations to come.
Line where the sky and the sea appear to meet?
Ah, what a beautiful sight you're describing! That magical line where the sky and the sea come together is called the horizon. It's where the two vast expanses of sky and water seem to gently touch and blend into one another, creating a peaceful and serene view that inspires many artists like you to capture its beauty on canvas. Just remember to use soft, gentle strokes to bring out the tranquility and harmony of this special meeting place.
What are heavy soil and light soil?
Heavy soil is dense and holds onto water, making it harder for roots to penetrate and plants to thrive. Light soil, on the other hand, is loose and drains quickly, which can lead to poor water retention and nutrient deficiencies for plants. So basically, heavy soil is like trying to grow plants in a soggy sponge, while light soil is like trying to grow plants in a sieve.
5 facts about the troposphere?
Here are 5 facts about the troposphere:
1)Troposphere is the nearest layer to the Earth.
2)Ranges from 5 to 11 miles in thickness.
3)Almost all of Earth's weather takes place in this layer.
4)Contains almost all of the atmospheric water vapor.
5)It is an isothermal layer where temperature remains constant over a distance of about 9km.
Leeches typically grow to be around 1.5 to 3 inches in length, but some species can grow up to 8 inches. Growth rates can vary depending on factors such as food availability and environmental conditions.
How many houses can 1 gram of uranium power?
It is difficult to provide an exact number as it depends on various factors such as the energy efficiency of the houses, the configuration of the power plant, and the specific type of uranium used. Generally, 1 gram of uranium can produce a large amount of energy, enough to power several thousands of houses for a short period of time.
90 degrees from the equator to either pole, so 6200 divided by 90 is...68.8888888888888888888888888888888888...
Name 10 countries where the savanna is?
Sure, the savanna biome is found in countries such as Kenya, Tanzania, South Africa, Nigeria, Brazil, Australia, India, Venezuela, Colombia, and the United States (specifically in states like Texas and Florida). Savannas are characterized by grasslands with scattered trees and are typically found in tropical and subtropical regions with a seasonal rainfall pattern.
Sea-floor spreading is the process in which the ocean floor is extended when two plates move apart. As the plates move apart, the rocks break and form a crack between the plates. Earthquakes occur along the plate boundary. Magma rises through the cracks and seeps out onto the ocean floor like a long, thin, undersea volcano.
(Fig 1.11) Sea floor Spreading.
As magma meets the water, it cools and solidifies, adding to the edges of the sideways-moving plates. As magma piles up along the crack, a long chain of mountains forms gradually on the ocean floor. This chain is called an oceanic ridge. The boundaries where the plates move apart are 'constructive' because new crust is being formed and added to the ocean floor. The ocean floor gradually extends and thus the size of these plates increases. As these plates get bigger, others become smaller as they melt back into the Earth in the process called subduction.
The new rock at the edge has no sediments like the sand or mud, since it is formed only recently. Farther away from the ridge, sand and mud gradually settle on it, in an ever-thickening blanket. The oldest rocks may have 14,000 feet of sand and other sediments resting on top of it.
An example of an oceanic ridge is the Mid-Atlantic Ridge. It is one part of a system of mid-oceanic ridgesthat stretches for 50,000 miles through the world's oceans. The underwater mountains of the ridge may not be more than two miles higher than the surrounding sea floor.
On the whole, sea-floor spreading is basically volcanic, but it is a slow and regular process, without the explosive outbursts of the volcanoes on land.
Which sea does not exist on the earth?
There is no Blue Sea, although of course the phrase is used informally to refer to the ocean.
The Red Sea is between Israel and Jordan.
The Yellow Sea is between the Chinese mainland and the Korean. It is linked with the East China Sea to the south.
The Black Sea is bordered by the former USSR, Turkey, Bulgaria, and Romania.
Is limestone a metallic or a nonmetallic mineral?
Limestone is a nonmetallic mineral. It is a sedimentary rock primarily composed of calcium carbonate, which is a chemical compound with a nonmetallic element (calcium) and a nonmetallic element (carbon) bonded together. Metallic minerals, on the other hand, are composed of metals or have metallic properties. Limestone does not fall into this category.
Wikipedia states that the thermal conductivity of water is 0.6 W/(m·K) (air is 0.025 and silver is 429), electrical conductivity of drinking water is stated as 0.0005 to 0.05 S/m (silver is 63.01 × 106 and air 0.3 to 0.8 × 10-14)
Water is a good insulator but poor conductor. But compared with the air, water is the better one. The substances that can easily travel or transfer the heat is conductor such as metals. But in other way, insulator cannot easily travel the heat as fast as the insulator such as water and air. Let's try one experiment to prove this statement. the materials are water, aluminum block. Boil two beaker of water until it reaches the boiling point and make sure both of water are same temperature. then, put the aluminum block in one of the beaker.
What do you call it when you change ice to water?
The process of changing ice to water is called "melting." This occurs when heat energy is transferred to the ice, causing the ice molecules to gain enough energy to overcome the intermolecular forces holding them in a solid state. As a result, the ice transitions into a liquid state, forming water.
What colour does red green and blue make when mixed?
Well, isn't that just a happy little question! When you mix red, green, and blue together, you get a lovely color called white. It's like a beautiful rainbow coming together in harmony. Just remember, there are no mistakes in art, only happy accidents!
Which is denser the inner core or the outer core?
The mantle is more dense than the asthenosphere, lithosphere, and the crust. The inner core and the outer core are more dense, however. The mantle is also a solid. I am learning this in my science class right now! :)
How many meters around the world?
The circumference of the Earth at the Equator is 40,075.02 kilometres, or 40,075,020 meters.
Is a mesa a constructive or destructive force?
Oh, dude, a mesa is neither a constructive nor a destructive force. It's just a big ol' flat-topped mountain, chillin' there in the desert like, "Hey, I'm a mesa, what's up?" It's not out here causing chaos or building skyscrapers, it's just doing its own thing, being all majestic and stuff. So, like, let the mesa live its best life, man.
Is it colder inside a car in winter than it is outside?
Yes it is. This is because the metal of the car conducts cold so it keeps the car as cold as it was outside the car at the coldest point. This will gradually return to the same temperature as outside when the weather heats up some. It can be - a car can be insulated enough that when the air is cold enough, temp A, it reduces the interior temperature to temp B (close but not as low as A), but sunlight and fast moving winds can blow in air warmer than both A and B: the air inside the car is not being blown away and is insulated so it doesn't go up in temp near as much as the air.
