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28/1/2020 0 Comments Learning about rocksReport by Sol and Kiki. Sintra is the perfect place for Sol to learn about the rock cycle. As a little intro: Sintra is part of the Sintra Hills, ranging 16 kilometers from Sintra to Cabo da Roca on the Atlantic Ocean. It was known in the Ancient World as Lunae Mons (Mountain of the Moon) and was the legendary retreat of Diana the Huntress (known as Cynthia to the Romans, hence Cintra). But I digress... We walked up along ancient footpaths on this hill (photo below) that leads to the Castle of the Moors which you can faintly make out on top: Back to Sol and learning about the rocks here. First Sol watched a Youtube video about the rock cycle. Sol says: Today I learnt about the rock cycle. There are three main processes of the rock cycle: 1. Melting and Cooling 2. Weather and Erosion 3. Heat and Pressure 1. Melting and Cooling in Sintra: I found this information on a sign on the path to the top of the hill:
2. Weather and Erosion: I learnt that weather and erosion breaks down rock. I found different examples along the path. Here are some photos I took: 3. Heat and Pressure:
The final stage in the cycle is heat and pressure. Rock deep in the ground, it becomes soft and it eventually turns into metamorphic rock. Metamorphic means 'change in form': these processes cause the change in the rocks.
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