Q:

What are the physical properties of sand?

A:

Quick Answer

Sand is primarily composed of finely granulated silica and, depending on its location, can include various rock, coral, shell or lava fragments. It is lightweight and easily transported by wind and water. Its composition directly affects its color, resulting in black, white, pink and green coloring.

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What are the physical properties of sand?
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Full Answer

Wind and water are the primary agents responsible for creating sand. Because it is easily transferred by nature, sand can be found far from its point of creation. When sand is subjected to strong wind, it can build up in large amounts resulting in sand dunes. Sand dunes are seen throughout the desert and on many beaches around the world.

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    What is the difference between sand and silt?

    A:

    The primary difference between sand and silt is the particle size. Sand is composed of large particles, making it excessively coarse. Silt is made of much smaller particles and is slippery to the touch.

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    What is topsoil made of?

    A:

    Topsoil is composed of soil containing a high amount of organic material that is rich in nutrients. Most topsoil contains various amounts of clay, sand and silt. Topsoil comes from the topmost layer of the Earth's surface.

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    Why does sand absorb water?

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    Sand absorbs water because sand particles have pores in them that, when dry, are filled with air. When the sand particles are wet, the air in the spores is replaced with water.

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  • Q:

    Why does sand cool down faster than water?

    A:

    Sand cools down faster than water because it has a lower specific heat capacity than water. That is, it takes more energy to raise the temperature of water than to raise the temperature of sand by the same amount, given equal masses of each substance. Sand has a specific heat capacity of about 0.290 J/g°C, while water has a specific heat capacity of 4.18 J/g°C.

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