Rock Composition and Formation Quiz

During a hiking trip, you pick up a piece of rock. What is this rock primarily composed of?

• Organic material

• Minerals

• Water

• Gases

During a field trip, a group of geology students are asked to identify the three major classes of rocks they observe in a natural landscape. What are these classes?

• Sedimentary, Metamorphic, and Mineral

• Igneous, Sedimentary, and Limestone

• Igneous, Sedimentary, and Metamorphic

• Igneous, Crystal, and Sedimentary

During a field trip, a group of students are observing a mountain range. Their teacher explains the importance of understanding the materials that make up the Earth and the processes that shape it over time. What is this field of study called?

• Biology

• Astronomy

• Geology

• Ecology

Imagine you are a geologist studying rock formations in a mountainous region. You come across a rock that is largely composed of the minerals quartz, feldspar, and mica. What type of rock have you discovered?

• Sandstone

• Limestone

• Granite

• Obsidian

While hiking through a volcanic region, you come across a shiny black rock. Your guide asks you to identify it. What type of rock is obsidian?

• Sedimentary

• Metamorphic

• Igneous

• Mineral

Imagine you are exploring a volcanic region and observe the ground beneath your feet. What type of rock are you most likely standing on, considering it formed from magma that cooled and solidified?

• Sedimentary rock

• Metamorphic rock

• Igneous rock

• Limestone

During a geology lecture, the professor asks, "What is the Latin origin of the word 'igneous'?"

• ignis

• magma

• terra

• roca

What is magma?

How are igneous rocks subdivided?

What forms extrusive igneous rock?