https://padlet.com/selig1/ipe109wl7ix1 2nd grade Science en-us 2016-11-08 19:01:52 UTC 2025-11-10 03:33:22 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Brightnessdown.png selig1 https://padlet.com/selig1/ipe109wl7ix1/wish/136206906 Sedimentary rock is rock that is made up of minerals, sand, mud, and even the remains of living things. It is often softer than other types of rock.]]> 2016-11-08 19:03:44 UTC https://padlet.com/selig1/ipe109wl7ix1/wish/136206906 selig1 https://padlet.com/selig1/ipe109wl7ix1/wish/136209428 Sometimes, hot magma erupts at the Earth’s surface in the form of cracks, fissures or volcanoes. This hot rock is called lava. As the lava cools, it forms extrusive, igneous rock, such as basalt or pumice. Most igneous rocks are very hard because they were created under intense pressure and heat. Pumice is a soft, light rock that has many holes.]]> 2016-11-08 19:10:39 UTC https://padlet.com/selig1/ipe109wl7ix1/wish/136209428 selig1 https://padlet.com/selig1/ipe109wl7ix1/wish/136211871 Metamorphic rocks can be formed by pressure deep under the Earth's surface, from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.]]> 2016-11-08 19:17:19 UTC https://padlet.com/selig1/ipe109wl7ix1/wish/136211871 selig1 https://padlet.com/selig1/ipe109wl7ix1/wish/136213395 2016-11-08 19:21:58 UTC https://padlet.com/selig1/ipe109wl7ix1/wish/136213395 selig1 https://padlet.com/selig1/ipe109wl7ix1/wish/136214286 2016-11-08 19:24:16 UTC https://padlet.com/selig1/ipe109wl7ix1/wish/136214286 selig1 https://padlet.com/selig1/ipe109wl7ix1/wish/136215357

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