my science homework
2007-03-31 08:32:06 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
Frost is ice. When it freezes inside tiny cracks of the rocks, it breaks the rocks. This works because water expands when it freezes.
2007-03-31 08:36:41 · answer #1 · answered by ecolink 7 · 0⤊ 0⤋
Moisture gets into tiny cracks in the rock before it gets frosty. Then it gets frosty, the water freezes and expands. This expansion in the tiny cracks pushes them apart, cracking the rock still further (like water pipes bursting in winter when the water in them freezes). This process repeats over and over, so the rock's cracks eventually break up the rock.
2007-03-31 15:39:30 · answer #2 · answered by Adam B 2 · 0⤊ 0⤋
The frosts freeze the water in the cracks and as it expands the ice forces the crack to open further
2007-03-31 21:19:28 · answer #3 · answered by Murray H 6 · 0⤊ 0⤋
When water, which expands as a solid, enters in cracks of a rock, the resulting expansion has enough pressure to cause a break (fissure) in the rock.
2007-03-31 15:35:34 · answer #4 · answered by in the know 2 · 0⤊ 0⤋
The same way weather damages roads. Water find ist way into the smallest cracks, when it freezes it expands. (Fill a water bottle to the top and freeze it, to see how much it expands), year after year the crack will get bigger and fit more water to expand more, finnaly break.
2007-03-31 15:41:25 · answer #5 · answered by Anonymous · 0⤊ 0⤋
the frost is ice formed by freezing moisture in the air like dew..... when the moisture is in the surficial nooks and crannies of porous rocks and it freezes the moisture... or the water... and causes it to expand ... and this causes the rock surface to crack and crumble which is called weathering...
2007-03-31 15:39:54 · answer #6 · answered by ccseg2006 6 · 0⤊ 0⤋
What the others have said is correct. The term in French is "gelifraction" there is a good diagram at the following website: http://courseweb.edteched.uottawa.ca/geo1511/Cours_Magistraux/1511-4fig(01).pdf
Hope this helps with your science project.
2007-03-31 15:53:18 · answer #7 · answered by Sarah Morgan-White 2 · 0⤊ 0⤋