https://padlet.com/20400681/4v4gcp8vhnb1 en-us 2017-11-03 14:04:21 UTC 2025-11-14 14:45:09 UTC hello@padlet.com 20400681 https://padlet.com/20400681/4v4gcp8vhnb1/wish/203297729 Sand Dunes are formed simply by the wind blowing around sand. They begin to build up these hills made completely out of sand. They are found mostly in hot and dry climates where deserts are located. As you can see in the photo below wind is blowing sand up the dune, which creates a very smooth surface. ]]> 2017-11-03 14:10:49 UTC https://padlet.com/20400681/4v4gcp8vhnb1/wish/203297729 20400681 https://padlet.com/20400681/4v4gcp8vhnb1/wish/203300758 Hoodoos are formed by both frost wedging and slightly acidic rain water. When frost wedging occurs water seeps into the cracks of the rock and freezes, then since the water expands when it freezes it can break off chunks of rock and create huge or eve small cracks in the rock. Then rain which is slightly acidic comes down it can slowly dissolve the limestone rock (which are what most hoodoos are made of), creating there odd, abstract shaped rocks. They can be found in hot and dry climates like Utah and even in Colorado. ]]> 2017-11-03 14:16:41 UTC https://padlet.com/20400681/4v4gcp8vhnb1/wish/203300758 20400681 https://padlet.com/20400681/4v4gcp8vhnb1/wish/203307193 Pinnacles are limestone rocks that are broken down by sand that is picked up by the wind.]]> 2017-11-03 14:28:13 UTC https://padlet.com/20400681/4v4gcp8vhnb1/wish/203307193 20400681 https://padlet.com/20400681/4v4gcp8vhnb1/wish/203311627 Arches are formed by wind and water which erodes the rocks. Since the rocks are soft it can cause a break though in the rock, therefore creating a arch. ]]> 2017-11-03 14:36:25 UTC https://padlet.com/20400681/4v4gcp8vhnb1/wish/203311627 20400681 https://padlet.com/20400681/4v4gcp8vhnb1/wish/203311891 Talus slopes occur when weathered rocks pile up on the side or a hill or mountain. Making it looks as if the sediments are pouring out of the mountain or hill.]]> 2017-11-03 14:36:51 UTC https://padlet.com/20400681/4v4gcp8vhnb1/wish/203311891 20400681 https://padlet.com/20400681/4v4gcp8vhnb1/wish/203314021 V-shaped valleys are formed by a flowing river which cuts though a mountain valley. Overtime rain and snow erodes the rocks on the mountains, causing them to shape into a beautiful valley that leads into a river. An example of this is the Colorado River, which passes through the Rocky Mountains creating a v-shaped valley. ]]> 2017-11-03 14:41:05 UTC https://padlet.com/20400681/4v4gcp8vhnb1/wish/203314021 20400681 https://padlet.com/20400681/4v4gcp8vhnb1/wish/203315335 Meandering streams can form from many different disturbances. These streams always begin as a straight river but overtime a disturbance such as a animal burrowing a home in the river can turn a normal river into something like the picture below. These disturbances can make the rocks in the stream erode and crumble apart making the river begin to go in a different direction then it will bounce back to the other side. Eventually the perfectly normal river will be a meandering stream.]]> 2017-11-03 14:43:43 UTC https://padlet.com/20400681/4v4gcp8vhnb1/wish/203315335 20400681 https://padlet.com/20400681/4v4gcp8vhnb1/wish/203315827 Ox-bow lakes are formed when meandering streams grow so curvy they bubble into themselves. Then instead of going the long way around, the stream will take the short route. This eventually leaves a crescent shaped lake or an ox-bow.]]> 2017-11-03 14:44:41 UTC https://padlet.com/20400681/4v4gcp8vhnb1/wish/203315827 20400681 https://padlet.com/20400681/4v4gcp8vhnb1/wish/203316739 Sinkholes are simply holes in the ground that are created by erosion and the water that is draining. Sinkholes usually form from natural caused but some are created by human activity.]]> 2017-11-03 14:46:19 UTC https://padlet.com/20400681/4v4gcp8vhnb1/wish/203316739 20400681 https://padlet.com/20400681/4v4gcp8vhnb1/wish/203646962 Stalactites are formed when water seeps though rocks and picks up minerals, then seeps further into a cave where it dips and builds up these spikes. Then the water that dips down below the stalactite builds up to make a stag mite. eventually overtime they will fuse together to make pillars.]]> 2017-11-05 16:33:19 UTC https://padlet.com/20400681/4v4gcp8vhnb1/wish/203646962 20400681 https://padlet.com/20400681/4v4gcp8vhnb1/wish/203647528 Pillars in caves form when a stalactite and a stag mites have grown enough to meet each other in the middle, creating a pillar or column.]]> 2017-11-05 16:37:18 UTC https://padlet.com/20400681/4v4gcp8vhnb1/wish/203647528 20400681 https://padlet.com/20400681/4v4gcp8vhnb1/wish/203647726 Moraines are masses of rocks or sediments carried down by a glacier. They're are much like talus slopes. ]]> 2017-11-05 16:38:55 UTC https://padlet.com/20400681/4v4gcp8vhnb1/wish/203647726 20400681 https://padlet.com/20400681/4v4gcp8vhnb1/wish/203647857 Aretes are formed when glaciers pass though both sides of a mountain top, creating a sharp edge.]]> 2017-11-05 16:40:03 UTC https://padlet.com/20400681/4v4gcp8vhnb1/wish/203647857 20400681 https://padlet.com/20400681/4v4gcp8vhnb1/wish/203648084 Horns are formed when three or more aretes are eroded, eventually creating a sharp-edged peak. ]]> 2017-11-05 16:41:32 UTC https://padlet.com/20400681/4v4gcp8vhnb1/wish/203648084 20400681 https://padlet.com/20400681/4v4gcp8vhnb1/wish/203648240 U-shaped valleys are simply formed by giant glaciers that carve away the valley to create a big U shape in a mountain range. ]]> 2017-11-05 16:42:30 UTC https://padlet.com/20400681/4v4gcp8vhnb1/wish/203648240 20400681 https://padlet.com/20400681/4v4gcp8vhnb1/wish/203648422 Cirques are mountain valley heads that have been eroded by a glacier to create a deep hollow. ]]> 2017-11-05 16:43:25 UTC https://padlet.com/20400681/4v4gcp8vhnb1/wish/203648422 20400681 https://padlet.com/20400681/4v4gcp8vhnb1/wish/203648661 Hanging valleys are formed when a glacier cuts though a valley creating a U-shaped valley and when another glacier cuts though a valley below that. Then when the glaciers recede it leaves a huge U-shaped valley that falls into a smaller valley.]]> 2017-11-05 16:44:56 UTC https://padlet.com/20400681/4v4gcp8vhnb1/wish/203648661 20400681 https://padlet.com/20400681/4v4gcp8vhnb1/wish/203649083 Creeps are by far the slowest mass wasting process. They're formed when surface sediments expand and contract from the weather, as well as the pull of gravity. You can see that this process is occurring when trees, fences, and telephone lines are leaning or tilted.]]> 2017-11-05 16:47:50 UTC https://padlet.com/20400681/4v4gcp8vhnb1/wish/203649083 20400681 https://padlet.com/20400681/4v4gcp8vhnb1/wish/203649266 Landslides, falls, and flows are formed either by natural causes like earthquakes or heavy rainfall, or they can be formed by humans like mining or clear cutting. Whenever these occur it causes rocks to tumble down a mountain or hill crashing at the bottom. These can be very dangerous if it happens to fall onto a road or path, potentially killing someone who happens to be underneath it.]]> 2017-11-05 16:49:11 UTC https://padlet.com/20400681/4v4gcp8vhnb1/wish/203649266 20400681 https://padlet.com/20400681/4v4gcp8vhnb1/wish/203649356 Slumps are simply smaller types of slides. They occur very fast as compared to slides which slowly fall over time. They form when the base of a slope is removed, causing sediments to fall.]]> 2017-11-05 16:49:50 UTC https://padlet.com/20400681/4v4gcp8vhnb1/wish/203649356