6th Science: Unit 4 Test

Front

What is compaction in geology?

Back

Compaction is the process where sediments are pressed together under pressure, reducing their volume.

Front

What type of rock forms when lava cools and crystallizes?

Back

Extrusive Igneous rock forms when lava cools and crystallizes quickly on the Earth's surface.

Front

What is loam soil?

Back

Loam is a type of soil that is an equal mixture of sand, silt, and clay, making it ideal for gardening.

Front

What is a dwarf planet?

Back

A dwarf planet is a celestial body that orbits the sun and is similar to a planet but does not clear its orbit of other debris. An example is Pluto.

Front

What type of rock is basalt?

Back

Basalt is an igneous rock that forms from the rapid cooling of lava.

Front

What is lithification?

Back

Lithification is the process of turning sediments into solid rock through compaction and cementation.

Front

What is cementation in geology?

Back

Cementation is the process where dissolved minerals crystallize and bind sediment particles together.

Front

What is the difference between intrusive and extrusive igneous rocks?

Back

Intrusive igneous rocks form from magma that cools slowly beneath the Earth's surface, while extrusive igneous rocks form from lava that cools quickly on the surface.

Front

What is sedimentary rock?

Back

Sedimentary rock is formed from the accumulation and compaction of mineral and organic particles.

Front

What is the rock cycle?

Back

The rock cycle is the continuous process of rock formation, breakdown, and reformation through geological processes.