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!

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!

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!

Answer explanation

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!

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 (a)