FlashDash ← Public Lessons
Science 11-1 (6. Land Formation and Volcanoes)
Q
What two types of processes shape Earth's landforms?
A
Constructive and destructive processes.
Q
What is a constructive process?
A
A process that builds up landforms, such as volcanic activity or mountain building.
Q
What is a destructive process?
A
A process that breaks down or wears away landforms, such as weathering and erosion.
Q
What processes can create mountains?
A
Compression, folding, faulting, and volcanic activity.
Q
How does volcanic construction create landforms?
A
Lava and ash accumulate over time.
Q
What is the role of weathering in land formation?
A
It breaks down rocks.
Q
What do erosion and deposition do?
A
Move and accumulate sediments, creating beaches, deltas, and other landforms.
Q
What are the three common types of volcanoes?
A
Shield, composite (stratovolcano), and cinder cone.
Q
What is a shield volcano?
A
A broad, gently sloping volcano usually built by relatively fluid lava.
Q
What is a composite volcano?
A
A steep-sided volcano made of layers of lava and pyroclastic material.
Q
What is a cinder cone volcano?
A
An often small, steep volcano built mainly from loose volcanic fragments.
Q
What is magma?
A
Molten rock below Earth's surface.
Q
What is lava?
A
Molten rock that reaches Earth's surface.
Q
What is the difference between magma and lava?
A
Magma is underground; lava is at the surface.