Geology Quiz

What determines the texture of an igneous rock?

• Its color

• The presence of fossils

• How big the crystals are

• The type of minerals present

Which of the following is an example of an intrusive igneous rock?

• Obsidian

• Pumice

• Granite

• Basalt

Igneous rocks can form either deep within the Earth or near/on the surface. True or False?

• True

• False

What is sediment?

• Liquid rock

• Fragments resulting from the breaking of rocks and minerals

• Organic matter found in rocks

• Crystallized minerals

What process involves sediments being pushed together and water and air being squeezed out?

• Precipitation

• Deposition

• Compaction

• Cementation

Which type of sedimentary rock forms from the remains or traces of animals and/or plants?

• Organic

• Chemical

• Fragmental

• Intrusive

Contact metamorphism occurs when:

• Tectonic plates push against each other

• Hot magma pushes through existing rock

• Rocks are subjected to high pressure and heat

• Minerals settle out of water

Foliated metamorphic rocks are characterized by:

• No visible parallel bands

• Flattened mineral crystals in parallel bands

• Round pebbles and fragments

• Angular pieces cemented together

What is the parent rock of marble?

• Granite

• Slate

• Limestone

• Sandstone

Which type of weathering involves a change in the composition and appearance of minerals?

• Mechanical weathering

• Chemical weathering

• Frost action

• Exfoliation