science term 2 quiz

1.Layers of sediments build up on the sea bed in a process called…

• Solidification

• Sedimentation

• eroded

• crystaline

2.… is formed of crushed sea shells

• Limestone

• Shale

• Marble

• Gneiss

.The process when magma cools and turns into a solid … 

• Solidification

• Extrusive igneous

• Intrusive igneous

• Crystalline

4.The imprint of the animal in the sediments is called as … 

• Fossils

• Cast

• Mould

• Crystal

A whole animal preserved in minerals and hardened into solid …

• Mould

• Cast

• Basalt

• Granite

Write down three types of rocks and explain!

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Answer explanation

Sedimentary rocks : are made from small pieces of other rocks stuck together.

Metamorphic rocks : are existing rocks that have been changed.

Igneous rocks : come from magma that has cooled into solid rock.

Mention two types of igneous rocks and explain!

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Answer explanation

Extrusive igneous rock means Outside the Earth's crust, on the surface.

Intrusive igneous rock means Inside the Earth's crust.

Write down three types of sedimentary rock and explain!

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Sandstone is a sedimentary rock which consists of sand grains stuck together.

Shale is formed of very fine-grained sediments..

Limestone is made from layers of shells.

Mention three types of soil and explain!

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Answer explanation

Sandy soil: have large particles and the texture is rough and crumbly.

Loam: consists of a mixture of sand and clay, so they are made of particles of different sizes.

Clay soil: have very small particles which are tightly packed together.

the process when magma cools it turns into solid is called .....