Snowball: Wikis

  
  
  

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A collection of snowballs.
A large snowball under construction in Oxford.
A medieval image from Italy of people throwing snowballs
Ambrogio Lorenzetti's Winter

A snowball is a spherical object made from snow, usually created by scooping snow with the hands, and compacting it into a roughly fist-sized ball. The snowball is often used to engage in games, such as snowball fights. Snowball fights are usually light-hearted and involve throwing snowballs at one's friends or family. The pressure exerted by the hands on the snow is a determinant for the final result. Reduced pressure leads to a light and soft snowball. A higher pressure causes the snow to melt, turning into liquid water. Once the pressure is removed, the water turns again into ice, leading to a more compact and hard snowball called an iceball, which eventually can be considered harmful during a snowball fight. The process of melting and refreezing is called regelation.

A snowball may also be a large ball of snow formed by rolling a smaller snowball on a snow-covered surface. The smaller snowball grows by picking up additional snow as it rolls. The terms "snowball effect" and "snowballing" are named after this process. This technique is often used to create snowmen.

There are some temperature/humidity ranges that prohibit or restrict the formulation of a snowball. With a powdery snow, snowballs are difficult to form. If you're walking on snow and it squeaks, chances are the temperature/humidity level won't form a snowball[citation needed].

Self rolling snowballs

Under certain, rarely occurring circumstances, self rolling snowballs form on their own.[1]

References

  1. ^ Rare self-rolling giant snow balls found in UK, The Telegraph, January 8, 2010

Simple English

Snowballs is a ball of snow. They are usually made by a person picking snow up in their hands and pressing it together in the ball the size of their hand. Snowballs are usually thrown at people or objects as a game called a snowball fight. Making snowballs is a common activity for children when it snows.

Larger snowballs are made by using a ball the size of a hand and rolling it on the ground. As more snow sticks to it, the ball grows larger. Larger snowballs are often used to make Snowmen. The term "Snowball effect" comes from this. It means as things go on, they get larger in the same way that a snowball gets larger are it rolls.








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