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The Marvels of Beach Sand

The Marvels of Beach Sand

Ah, the joys of the beach – salty ocean breezes,  refreshing waters and, of course, the feeling of sand squishing between your toes. But have you ever stopped to think about the magical stuff that makes up sand, or its incredible journey to the shore?

Check out our fact sheet, then learn about new words with our DICTIONARY.

ROXBOX facts about sand
 

SAND FACT SHEET DICTIONARY: 
Eroded
When wind, water, or other objects make pieces of a rock crumble off. Like an eraser when you rub it on a page and see the little pieces left behind. 
Decades 
Between 10 - 100 years.
Millenia 
Thousands of years 
1200°C 
A temperature. Your oven will reach about 220°C, 1200°C is the around the same temperature as the lava from a volcano!
Friction
Friction is a force, the resistance of motion when one object rubs against another. Whenever two objects rub against each other, they cause friction. Friction works against the motion and acts in the opposite direction.
Frequency
Frequency tells you how high pitch (squeeky) or how low pitch a sound is. Frequency is a number measured in Hz (Hertz), and the number tells you how many sound waves there are per second. The higher the frequency, the more quickly air particles vibrate and the higher the pitch. In sound waves, a high pitch means a high note and a low pitch is a low note.
Phenomenon
When something happens, but nobody can figure out how or why. Even scientists!
Uniform
In the science world this is not what you wear to school! It means that things are the same. If sand grains are uniform it means they are all a similar size and shape. 
Vibrate
When things are shaking very quickly back and forth. 

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