https://padlet.com/kayla_hale/3vcis9b7b24m en-us 2017-11-14 04:40:05 UTC 2018-03-08 14:22:52 UTC hello@padlet.com kayla_hale https://padlet.com/kayla_hale/3vcis9b7b24m/wish/206571130 http://www.pkearthandspace.com/article/601/weathering-and-erosion-and-the-rock-cyclelogin?username=thealberta&password=library]]> 2017-11-14 04:40:37 UTC https://padlet.com/kayla_hale/3vcis9b7b24m/wish/206571130 kayla_hale https://padlet.com/kayla_hale/3vcis9b7b24m/wish/206571138 Erosion is the general term that means the wearing down of landforms, including the toughest, tallest mountains. Actually there are two forces that work together: weathering, which is the breakdown of land into smaller pieces, and erosion, which is the movement of the pieces removed by weathering. Weathering is caused by wind, water, heat and cold; erosion happens via wind, water, and gravity. Weathering and erosion typically happen over hundreds, thousands, or even millions of years. Boulders become sand and mountains are reduced to smaller hills. The pieces move downhill, creating new landforms. It’s a never-ending process.]]> 2017-11-14 04:40:40 UTC https://padlet.com/kayla_hale/3vcis9b7b24m/wish/206571138 kayla_hale https://padlet.com/kayla_hale/3vcis9b7b24m/wish/206571147 Just a little drop of rain can carry away tiny bits of soil. So imagine what a brief downpour can do! Little streams join to become a bigger stream and the water rushes downhill. More and more sediment is picked up and carried along in streams and then into rivers. The faster the water rushes, the more the water wears away at the river banks, gathering more sediment and creating larger and larger valleys. It was moving water that created the Grand Canyon, which is about a mile (1,600 meters) deep and almost twenty miles wide (29 kilometers) in some parts. To note, it took about 5 million years to form.]]> 2017-11-14 04:40:43 UTC https://padlet.com/kayla_hale/3vcis9b7b24m/wish/206571147 kayla_hale https://padlet.com/kayla_hale/3vcis9b7b24m/wish/206571157 Glaciers, which are slow-moving hunks of ice, creep across the landscape as they melt and re-freeze. Along the way they pick up rocks and soil and carve the land they travel over. Glaciers shape valleys, ravines and lakes. Wind can blow hard enough to wear down rocks. With help from sand it picks up, wind can reshape a rocky landscape. It can also pull away topsoil and destroy fertile farmland.]]> 2017-11-14 04:40:47 UTC https://padlet.com/kayla_hale/3vcis9b7b24m/wish/206571157 kayla_hale https://padlet.com/kayla_hale/3vcis9b7b24m/wish/206571165 https://youtu.be/t6IBg4Srb6E]]> 2017-11-14 04:40:49 UTC https://padlet.com/kayla_hale/3vcis9b7b24m/wish/206571165 kayla_hale https://padlet.com/kayla_hale/3vcis9b7b24m/wish/206571171 https://youtu.be/R-Iak3Wvh9c

]]> 2017-11-14 04:40:53 UTC https://padlet.com/kayla_hale/3vcis9b7b24m/wish/206571171 kayla_hale https://padlet.com/kayla_hale/3vcis9b7b24m/wish/214753669 2017-12-10 00:34:50 UTC https://padlet.com/kayla_hale/3vcis9b7b24m/wish/214753669 kayla_hale https://padlet.com/kayla_hale/3vcis9b7b24m/wish/214753705 2017-12-10 00:36:50 UTC https://padlet.com/kayla_hale/3vcis9b7b24m/wish/214753705