So, what is a quicksand? Quicksand is a granural material (sand or silt) that become a hydrogel/liquified, a quicksand not only consist a granural material but also consist of some clay and water (that's why it become a hydrogel).
How a quicksand formed? ('~')
Quicksand is formed because there are some water from underground saturated and mixed with the sand from above.
Where we can found a quicksand? ('o')
Quicksand are usually to be found in watery/swampy area, like riverbank, beach lake shoreline, and marsh.
What happen if we stepped on a quicksand?
Well, quicksand it's not always suck us like in the movies, usually, some of quicksand can be stepped without harm, but if we giving so much pressure to the quicksand, it will be pushed down and sink us, but don't worry, if you didn't move to much (relax), it will make your body float.
That's some information that i got from internet and another random resource, so yeah, see you later (--")/
Internet sources:
http://en.wikipedia.org/wiki/Quicksand
http://en.wikipedia.org/wiki/Granular_material
http://science.howstuffworks.com/environmental/earth/geology/quicksand1.htm
http://science.howstuffworks.com/environmental/earth/geology/quicksand.htm
