Rock Cycle and Formation Assessment

What type of rock is formed from compaction and cementation of sediments, which is then melted by intense heat, then cools and crystalizes underground?

• Igneous
• Sedimentary
• Metamorphic
• All of the above

Which type of rock forms when sediments are compacted and cemented together?

• Igneous rock
• Sedimentary rock
• Metamorphic rock
• Crystalline rock

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

• Igneous
• Sedimentary
• Metamorphic
• All of the above

Metamorphic rocks are formed by:

• The cooling of molten rock
• The accumulation of dead organisms
• Heat and pressure changing existing rocks
• The erosion of mountains

What is the primary process that forms igneous rocks?

• Weathering and erosion
• Heat and pressure
• Melting and cooling of magma or lava
• Compaction of sediments

What is the difference between intrusive and extrusive igneous rocks?

• Intrusive rocks form underwater, extrusive above water
• Intrusive rocks form slowly inside Earth, extrusive form on the surface
• Intrusive rocks contain fossils, extrusive do not
• Intrusive rocks are always darker than extrusive rock

Clastic sedimentary rocks are formed from:

• Chemical precipitation
• Organic material
• Fragments of other rocks
• Volcanic ash

What role does heat play in the rock cycle?

• It only affects igneous rocks
• It breaks down all rocks into sediments
• It can melt rocks and change their composition
• It only affects rocks on Earth's surface

Which characteristic is most common in crystalline rocks?

• Layered appearance
• Interlocking mineral crystals
• Presence of fossils
• Rough, fragmented texture

What happens to minerals during metamorphism?

• They completely dissolve
• They recrystallize under pressure
• They turn into magma
• They break into sediments