Types of Rocks and Historical Tools

<p>They are often found in layers. (A)</p> Signup and view all the answers

<p>Geologist (B)</p> Signup and view all the answers

<p>Limestone (A)</p> Signup and view all the answers

<p>The size of the mineral crystals within the rock (A)</p> Signup and view all the answers

<p>Pressing and cementing of sediments (D)</p> Signup and view all the answers

<p>It is transformed from igneous or sedimentary rock under heat and pressure. (A)</p> Signup and view all the answers

<p>At Pulau Tekong within the Sajahat Formation (D)</p> Signup and view all the answers

<p>It involves the continual transformation of rocks from one type to another. (C)</p> Signup and view all the answers

<p>Metamorphosis (C)</p> Signup and view all the answers

<p>Slate (D)</p> Signup and view all the answers

<p>Basalt (D)</p> Signup and view all the answers

<p>Magma (D)</p> Signup and view all the answers

<p>They form from slower cooling magma. (B)</p> Signup and view all the answers

<p>Aligned minerals in parallel layers (B)</p> Signup and view all the answers

<p>Compaction and cementation of sediments (C)</p> Signup and view all the answers

<p>Pulau Tekong (C)</p> Signup and view all the answers

<p>Limestone (D)</p> Signup and view all the answers

<p>Igneous rocks (C)</p> Signup and view all the answers

<p>Creating strong concrete (C)</p> Signup and view all the answers

<p>Building material and sculpting (C)</p> Signup and view all the answers

<p>Rock cycle (A)</p> Signup and view all the answers

<p>Sand-sized particles (C)</p> Signup and view all the answers

<p>Fine-grained (D)</p> Signup and view all the answers

<p>Fossilized remains of organisms (B)</p> Signup and view all the answers

<p>Sedimentary (C)</p> Signup and view all the answers

<p>Metamorphic (C)</p> Signup and view all the answers

<p>Sedimentary rocks form when layers of sediments are pressed and cemented together under pressure. (A)</p> Signup and view all the answers

<p>Cooling and hardening of magma or lava (B)</p> Signup and view all the answers

<p>Erosion and weathering (C)</p> Signup and view all the answers

<p>Slate (D)</p> Signup and view all the answers

<p>Igneous rocks are formed from molten material, while metamorphic rocks are formed by the transformation of existing rocks under heat and pressure. (B)</p> Signup and view all the answers

<p>Slate (B)</p> Signup and view all the answers

<p>The continuous process of rocks changing from one type to another through various geological processes. (A)</p> Signup and view all the answers

<p>Igneous (C)</p> Signup and view all the answers

<p>Marble (C)</p> Signup and view all the answers

<p>Marble (C)</p> Signup and view all the answers

<p>Cooling of magma (C)</p> Signup and view all the answers

<p>They are generally harder and more resistant to weathering than coarse-grained igneous rocks. (B)</p> Signup and view all the answers

<p>Limestone (B)</p> Signup and view all the answers

<p>The size of the sediment particles that make up the rocks. (B)</p> Signup and view all the answers

<p>The rate at which the sediments harden. (A)</p> Signup and view all the answers

<p>Construction of pavements (B)</p> Signup and view all the answers

<p>The magma cooled slowly, allowing large crystals to form. (C)</p> Signup and view all the answers

<p>Sedimentary rocks are formed from the accumulation and hardening of sediments. (B)</p> Signup and view all the answers

<p>The size and visibility of the crystals within the rocks. (A)</p> Signup and view all the answers

<p>Rocks provided a strong and durable material for tools. (D)</p> Signup and view all the answers

<p>Coarse-grained rocks have larger mineral crystals due to slower cooling, while fine-grained rocks have smaller crystals due to faster cooling. (D)</p> Signup and view all the answers

<p>Granite (B)</p> Signup and view all the answers

<p>Shale (A)</p> Signup and view all the answers

<p>Metamorphic rocks are formed from the transformation of existing rocks due to intense heat and pressure. (D)</p> Signup and view all the answers

<p>Crystallization (B)</p> Signup and view all the answers

<p>By the accumulation, compaction, and cementation of sediments. (C)</p> Signup and view all the answers

<p>Ignis is the Latin word for &quot;fire&quot;, reflecting the origin of igneous rocks from molten material. (A)</p> Signup and view all the answers

The three main types of rocks: igneous, sedimentary, and metamorphic.

Rocks formed from cooled and hardened magma.

Rocks formed from particles and sediments over time.

Rocks formed from existing rocks through heat and pressure.

Common uses of basalt include floor tiles and textiles.

Granite is used for buildings and monuments because of its strength.

Limestone is used to make cement and blackboard chalk.

Formed when magma cools slowly inside the Earth.

The continual process by which rocks transform from one type to another.

Rocks form from weathered sediments pressed and cemented together.

Rocks formed from lava that cools quickly on the surface, with tiny grains.

A common coarse-grained igneous rock used for pavements and stone walls.

A fine-grained igneous rock formed from rapidly cooled lava; tough and resistant to weathering.

Tiny pieces of broken rocks, sand, clay, and silt carried by wind and water.

A fine-grained sedimentary rock used to make bricks, formed from small sediments.

A sedimentary rock made from hardened remains of marine organisms, may contain fossils.

A characteristic of some metamorphic rocks with aligned minerals in layers.

A metamorphic rock formed from granite by heat and pressure.

An area in Singapore where metamorphic rocks are found.

A metamorphic rock formed from limestone, used for building and sculpting.

Metamorphic rocks form from existing rocks due to heat and pressure.

A texture in metamorphic rocks where minerals are aligned in parallel layers.

Rocks transform from one type to another through processes like melting, cooling, and pressure.

A small area in Singapore where metamorphic rocks are present.

Gneiss is a metamorphic rock formed when granite is subjected to extreme conditions.

Granite is a prevalent igneous rock found mainly in central Singapore.

Rocks are solid materials of the Earth's crust composed of minerals.

The three main types of rocks are igneous, sedimentary, and metamorphic.

Igneous rocks form from cooled and hardened magma.

Sedimentary rocks are formed from particles and sediments compressed over time.

Coarse-grained igneous rocks form when magma cools slowly inside Earth vs fine-grained forms quickly on the surface.

Marble, a metamorphic rock, is used for architecture and decoration.

Limestone is a sedimentary rock used to make cement and blackboard chalk.

Metamorphic rocks form from existing rocks through heat and pressure, often changing in texture.

Layered rocks, mainly sandstone and conglomerate, found in southern, eastern, and western Singapore.

Processes that break down rocks into sediments for sedimentary rock formation.

Occurs when magma cools and hardens; can be fine-grained on the surface or coarse-grained inside Earth.

Rocks formed from larger sand-sized particles, examples include sandstone and conglomerate.

A coarse-grained sedimentary rock made of pebbles and sand grains cemented together.

Rocks formed from very small sediments, examples include shale.

A fine-grained igneous rock formed from lava, very hard and weather-resistant.

Process where weathered rocks break down into smaller pieces called sediments transported and deposited.

A sedimentary rock formed from the remains of marine organisms, often contains fossils.