Unit 3 tectonics and volcanics

Front

What is a convergent plate boundary?

Back

A convergent plate boundary is where two tectonic plates move towards each other, often resulting in one plate being forced beneath the other, leading to geological phenomena such as earthquakes and volcanic activity.

Front

What type of rock is formed from cooled magma or lava?

Back

Igneous rock is formed from the cooling and solidification of magma or lava.

Front

Define a mineral. What is a key characteristic of minerals?

Back

A mineral is a naturally occurring inorganic solid with a definite chemical composition and a crystalline structure. A key characteristic is that minerals have atoms arranged in an ordered repeating pattern.

Front

What is the difference between density and buoyancy?

Back

Density is the mass per unit volume of a substance, while buoyancy is the ability of an object to float in a fluid, which depends on the density of the object compared to the density of the fluid.

Front

What geological event is commonly associated with tectonic plate boundaries?

Back

Earthquakes are commonly associated with tectonic plate boundaries due to the movement and interaction of the plates.

Front

What is the definition of a volcano?

Back

A volcano is an opening in the Earth's crust through which molten rock, ash, and gases are expelled.

Front

Explain the process of subduction. What occurs during this process?

Back

Subduction is the process where one tectonic plate moves under another and sinks into the mantle. This can lead to the formation of deep ocean trenches and volcanic arcs.

Front

What is the role of tectonic plates in the formation of mountains?

Back

Tectonic plates can collide and push against each other, leading to the uplift of land and the formation of mountain ranges.

Front

What is a transform plate boundary?

Back

A transform plate boundary is where two tectonic plates slide past each other horizontally, often causing earthquakes.

Front

Define sedimentary rock. How is it formed?

Back

Sedimentary rock is formed from the accumulation and compaction of mineral and organic particles, often in layers, over time.