Cat 3 (HR/Componts/Plate Boundaries)

Front

What is a tectonic plate?

Back

A tectonic plate is a massive, irregularly shaped slab of solid rock that makes up the Earth's lithosphere, which includes the crust and the upper mantle.

Front

What are the three main types of plate boundaries?

Back

Divergent, convergent, and transform boundaries.

Front

What occurs at divergent plate boundaries?

Back

At divergent plate boundaries, tectonic plates move apart from each other, leading to the formation of new crust, often seen in mid-ocean ridges.

Front

What is a convergent plate boundary?

Back

A convergent plate boundary is where two tectonic plates collide, which can result in mountain building, earthquakes, and volcanic activity.

Front

What happens at transform plate boundaries?

Back

At transform plate boundaries, tectonic plates slide past one another, causing friction that can lead to earthquakes.

Front

What is a nebula?

Back

A nebula is a collection of dust and gases in space that can form stars or result from the explosion of dying stars.

Front

What is a star?

Back

A star is a large celestial body made of gases that emits light due to nuclear reactions occurring in its core.

Front

What is seafloor spreading?

Back

Seafloor spreading is the process by which new oceanic crust is created at mid-ocean ridges as tectonic plates pull apart.

Front

What is the significance of the Earth's tectonic activity?

Back

The Earth's tectonic activity is significant because it shapes the planet's surface, causes earthquakes, volcanic eruptions, and creates mountain ranges.

Front

What is the theory of plate tectonics?

Back

The theory of plate tectonics explains how the Earth's lithosphere is divided into tectonic plates that move and interact, leading to geological phenomena.