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Comets.

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9y ago

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Facts about halleys comet?

it is made up of ice and dirt and is therefore also known as a "Dirty Snowball"


What breed of dog is known for its fluffy white coat resembling a snowball?

The breed of dog known for its fluffy white coat resembling a snowball is the Samoyed.


What is the dirty snowball theory?

What are comets made of? Gravity holds stars and planets together, but what holds the other (little stuff) together. Ionic bonds. And it turns out that are only 3 that seem to work: Water (ice), Silicon oxide rock, and ferromagnetic metals (iron, nickel, cobalt). Comets don't seem to have much metal, so "dirty snow-ball". In 1949, Fred Lawrence Whipple theorized that the nucleus of a comet is made of frozen water, rocky debris, and frozen gases. This was called the "icy comglomerate" theory and is now known as the "dirty snowball" theory. However, in 1999, the Stardust spacecraft was launched and in 2004 it retrieved tiny particles from the comet Wild-2's surface and came back two years later in a capsule, landing in Utah. Minerals that formed in the presence of liquid water were discovered, proving that, at some point, pockets of water had existed on the comet. This disproved the "dirty snowball" theory.


Why ethics is a practical science?

Ethics is considered a practical science because its object is not merely to present truths that they are to be known, but to present truths that are to be acted upon.


In science a push or pull is known as?

Forces which also gives off energy to an object are pushes and pulls.


What event is nearest in time to the end of the period known as snowball Earth?

pop


What instrument is used to measure mass in physical science?

A balanced scale, which compares the mass of one object with that of a known quantity.


What is a comet known as?

comets are known to be dirty snowballs.


How do you measure mass in science and what instruments are commonly used for this purpose?

Mass is measured in science using instruments such as balances and scales. These instruments work by comparing the weight of an object to a known standard, such as a set of calibrated weights. The mass of an object is typically measured in units such as grams or kilograms.


Which event may be associated in time with the end of the period known as snowball Earth?

Cambrian Explosion


What is the name of the first comet?

its called a dirty snowball because of the wau it looks


What is the roundest thing in the universe and why is it considered as such?

The roundest object in the universe is the electron. It is considered the roundest because it has a perfectly spherical shape, with no detectable deviation from being perfectly round. This makes it the most symmetrical and uniform object known to science.