--- title: Sedimentary and metamorphic rocks — a lesson of Mova's school · trees and pragmatics description: «Sedimentary and metamorphic rocks», a lesson of the geography course of Mova's primary school, sentence by sentence with dependency trees and pragmatics. It begins: Because each layer settles on top of the one before, in rock that has not been disturbed the lowest layers are the oldest, so a cliff --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/geography/49-sedimentary-and-metamorphic-rocks/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [Geography](https://md.mova.elamur.ai/free/en/corpora/school/geography/) / Sedimentary and metamorphic rocks # Sedimentary and metamorphic rocks Lesson 49 of the geography course of Mova's primary school: 15 sentences, each with its syntax tree and pragmatics. The lessons are written for Mova, and their agreed trees are part of Mova corpus 0.4 (CC BY-SA 4.0). How Mova does on its tests: [the lesson at school](https://md.mova.elamur.ai/free/en/school-run/geography/49-sedimentary-and-metamorphic-rocks/). - [1](https://md.mova.elamur.ai/free/en/corpora/school/geography/49-sedimentary-and-metamorphic-rocks/1/) — Because each layer settles on top of the one before, in rock that has not been disturbed the lowest layers are the oldest, so a cliff face reads like a history book from the bottom up. - [3](https://md.mova.elamur.ai/free/en/corpora/school/geography/49-sedimentary-and-metamorphic-rocks/3/) — Metamorphic rocks are rocks changed by heat and pressure without melting, the way clay in a kiln turns into a hard pot: limestone becomes marble, and shale becomes slate. - [4](https://md.mova.elamur.ai/free/en/corpora/school/geography/49-sedimentary-and-metamorphic-rocks/4/) — When plates collide, layers of rock can be bent into folds like a rug pushed against a wall, and old towns built from local stone show the geology under their streets. - [5](https://md.mova.elamur.ai/free/en/corpora/school/geography/49-sedimentary-and-metamorphic-rocks/5/) — Sedimentary rocks form when layers of sand, mud, shells or other bits are buried, pressed and cemented together. - [6](https://md.mova.elamur.ai/free/en/corpora/school/geography/49-sedimentary-and-metamorphic-rocks/6/) — In undisturbed sedimentary rock, the lowest layers are the oldest. - [7](https://md.mova.elamur.ai/free/en/corpora/school/geography/49-sedimentary-and-metamorphic-rocks/7/) — Sandstone is made of sand grains cemented together, often from old beaches, rivers or deserts. - [8](https://md.mova.elamur.ai/free/en/corpora/school/geography/49-sedimentary-and-metamorphic-rocks/8/) — Limestone and chalk are made mostly from the shells and skeletons of tiny sea creatures. - [9](https://md.mova.elamur.ai/free/en/corpora/school/geography/49-sedimentary-and-metamorphic-rocks/9/) — Shale and mudstone are made of very fine mud that settled in calm water, and they are the most common sedimentary rocks. - [10](https://md.mova.elamur.ai/free/en/corpora/school/geography/49-sedimentary-and-metamorphic-rocks/10/) — Conglomerate is a rock made of rounded pebbles, rolled smooth by rivers or waves, cemented together. - [11](https://md.mova.elamur.ai/free/en/corpora/school/geography/49-sedimentary-and-metamorphic-rocks/11/) — Most fossils are found in sedimentary rocks, because living things were buried in the layers. - [12](https://md.mova.elamur.ai/free/en/corpora/school/geography/49-sedimentary-and-metamorphic-rocks/12/) — Metamorphic rocks are rocks changed by heat and pressure without melting. - [13](https://md.mova.elamur.ai/free/en/corpora/school/geography/49-sedimentary-and-metamorphic-rocks/13/) — Marble is limestone that has been changed by heat and pressure into a rock of tightly packed crystals. - [14](https://md.mova.elamur.ai/free/en/corpora/school/geography/49-sedimentary-and-metamorphic-rocks/14/) — Slate is shale changed by pressure so that it splits into thin, flat sheets, which is why it is used for roofs. - [15](https://md.mova.elamur.ai/free/en/corpora/school/geography/49-sedimentary-and-metamorphic-rocks/15/) — Layers of rock can be bent into folds when plates collide. - [16](https://md.mova.elamur.ai/free/en/corpora/school/geography/49-sedimentary-and-metamorphic-rocks/16/) — People have always built with local stone, so old towns often show the local geology, like the honey-coloured limestone of Bath or the granite of Aberdeen. - ← previous: [Igneous rocks and the rock cycle](https://md.mova.elamur.ai/free/en/corpora/school/geography/48-igneous-rocks-and-the-rock-cycle/) - next →: [Minerals and crystals](https://md.mova.elamur.ai/free/en/corpora/school/geography/50-minerals-and-crystals/) - ↑ back to [Geography](https://md.mova.elamur.ai/free/en/corpora/school/geography/)