Volcanic and Rock Cycle Concepts

What is the process called when rocks break down into smaller pieces?

• Erosion

• Weathering

• Melting

• Freezing

What is the movement of sediments from place to place called?

• Erosion

• Weathering

• Deposition

• Compaction

What natural forces help move sediments down the sides of a volcano?

• Earthquakes

• Howling winds, flowing water, and gravity

• Lightning

• Sunlight

What is the first step in the rock cycle as described in the text?

• Erosion

• Magma erupting from a volcano

• Sediments forming in a lake

• Rocks breaking down into smaller pieces

What type of rock forms from magma?

• Sedimentary rock

• Metamorphic rock

• Igneous rock

• Sandstone

What happens to metamorphic rock as it nears the mantle?

• It cools down

• It turns into sediment

• It melts into magma

• It becomes sedimentary rock

What is formed when sediments are compacted and cemented together?

• Igneous rock

• Metamorphic rock

• Sedimentary rock

• Magma

What natural event might cause magma to erupt?

• Earthquake

• Volcano

• Tornado

• Flood

What is the term for the movement of tectonic plates sliding beneath each other?

• Erosion

• Subduction

• Weathering

• Deposition

Which type of rock is formed under heat and pressure?

• Sedimentary rock

• Igneous rock

• Metamorphic rock

• Limestone