Rocks

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PPT presentation for 1º ESO Natural Sciences subject. Unit 6: Rocks

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Rocks

  1. 1. 1º ESO – Natural Sciences
  2. 2. What are rocks? What are rocks made up of?They are made up of minerals Can you name some things that granite and marble are used for?Floors, hobs, sculptures…To make up: formar, estar compuestoMarble: mármolHob: encimera (de la cocina)
  3. 3. Types of rocks Sedimentary Metamorphic Igneous (it comes from the latin word “Ignis” that means “fire”). In spanish: magmáticasDid you know? Oil and coal are called fossil fuels. They are the most important energy resources for the planet.To mean: significar, querer decir (una palabra)Oil: petróleo (cuando está en el yacimiento)Coal: carbón
  4. 4. Sedimentary rocks Detrital rocks: are made up of fragments of rocks that are stuck together. Chemical sedimentary rocks: are made of mineral crystals from oceans, lakes and groundwater that have dissolved in water. Organic rocks: are made of plants and animal remains which have been transformed into minerals.To be stuck: estar incrustado, compactadoGroundwater: Agua subterráneaAnimal remains: restos de animales
  5. 5. Classification of sedimentary rocks Fragments of Conglomerate rocks ans some Round or angular sand Sandstone Grains break off Detrital Small grains if scratched (arenisca) (arañado) Clay Smell like wet Very small grains (arcilla) earth when wet Limestone Chemical Reacts to acids reaction/calcium by producing (caliza) carbonate bubbles Gypsum Very soft. Chemical Scratched with (yeso) fingernail (uña) Evaporation of water deposits Rock salt Tastes salty Remains of land Coal Soft, black vegetation Organic Remains of Thick (espeso), Oil plants and black, liquid animals
  6. 6. Classification of sedimentary rocks Detrital: CONGLOMERATES
  7. 7. Classification of sedimentary rocks Detrital: SANDSTONES
  8. 8. Classification of sedimentary rocks Detrital: CLAY
  9. 9. Classification of sedimentary rocks Chemical: LIMESTONES
  10. 10. Classification of sedimentary rocks Chemical: GYPSUM
  11. 11. Classification of sedimentary rocks Chemical: SALT
  12. 12. Classification of sedimentary rocks Organic: COAL
  13. 13. Classification of igneous rocks Magma coolsPlutonic Intrusive slowly over Large crystals Granite thousands of years Basalt Lava cools rapidlyVolcanic Extrusive Tiny crystals on the surface Pumice  What is magma? Is the melted material from below the Earth’s crust. It consists of silicates, water and gases.  What is lava? Is magma on the Earth’s crust. To cool: enfriar Below: debajo
  14. 14. Classification of igneous rocks GRANITO BASALTO PIEDRA PÓMEZ
  15. 15. Classification of metamorphic rocks  Formed by slow process in the deep of the Earth, caused by high temperature and pressure, that change rock into metamorphic rocks. Parent rocks can be sedimentary, igneous or other metamorphic rocks, without melting. From sedimentary rocks: Slate (foliated), Marble (non-foliated)Deep (adjetivo): profundo Parent rock: roca matriz, roca origenDeep (sustantivo): profundidad Without: sinInto: En
  16. 16. Classification of metamorphic rocks

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