Class VII Social Sciences - Rocks and Earth Layers

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Vocabulary flashcards covering the characteristics, uses, and types of rocks, as well as the layers of the earth based on the Class VII Social Sciences guide book.

Last updated 10:16 AM on 7/8/26
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9 Terms

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Hard rocks

Rocks used in the construction of buildings, railways and roads.

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Shiny and precious rocks

Rocks used for making jewellery.

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Soft rocks

Rocks used for making talcum powder, chalks etc.

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Metamorphic rocks

Rocks which are formed due to transformation of igneous and sedimentary rocks under great heat and pressure.

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Igneous rocks

The rock which is made up of molten magma.

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Core

The innermost layer of the earth.

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Minerals

Natural substances such as gold, petroleum and coal.

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Sedimentary rocks

Rocks which contain fossils.

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Crust

The thinnest layer of the earth.