Geology

What is the hardest mineral on Earth?

• ruby

• emerald

• quartz

• diamond

Which rock type is formed from solidified lava?

• sedimentary rock

• metamorphic rock

• granite

• igneous rock

What is the process called when sedimentary rocks are subjected to heat and pressure?

• metamorphism

• deposition

• weathering

• erosion

What type of rock is formed from the cooling and solidification of magma or lava?

• metamorphic rock

• sedimentary rock

• granite

• igneous rock

What is the name for the remains or traces of ancient organisms preserved in rocks?

• fossilized remains

• ancient artifacts

• fossils

• prehistoric relics

Which mineral is commonly used in pencil 'lead'?

• graphite

• coal

• diamond

• charcoal

Which rock type is formed from the accumulation of organic remains?

• volcanic rock

• metamorphic rock

• igneous rock

• sedimentary rock

What is the process called when rocks are broken down into smaller pieces by weathering and erosion?

• erosion and weathering

• rock fragmentation

• weathering and erosion

• geological breakdown

What type of rock is formed from the compaction and cementation of sediments?

• volcanic rock

• sedimentary rock

• metamorphic rock

• igneous rock

Granite cools slowly underground, basalt cools much more quickly on the surface. Rate of cooling of a rock determines which one of these?

• The mixture of minerals

• The lustre

• The size of crystals

• The presence of biotite