SSA Review (Earth's Structures: Big Idea 6)

Front

What is the structure of the Earth?

Back

The Earth is composed of four main layers: the crust, mantle, outer core, and inner core.

Front

What is convection current?

Back

Convection currents are the movement of fluid caused by differences in temperature and density, which can drive tectonic plate motion.

Front

What is the significance of fossils in understanding Earth's past climates?

Back

Fossils can provide evidence of the types of environments that existed in the past, indicating how climates have changed over time.

Front

What are tectonic plates?

Back

Tectonic plates are large sections of the Earth's crust that move and interact with one another, causing geological activity.

Front

What is deforestation?

Back

Deforestation is the large-scale removal of trees from forested areas, which can lead to environmental issues.

Front

How does deforestation affect erosion?

Back

Deforestation increases erosion because the removal of trees reduces soil stability and increases runoff.

Front

What is the relationship between tectonic plate boundaries and mountain formation?

Back

Mountains are often formed at tectonic plate boundaries where plates collide, causing the Earth's crust to fold and uplift.

Front

What is the role of the mantle in Earth's structure?

Back

The mantle is the thick layer between the crust and the outer core, where convection currents occur, driving plate tectonics.

Front

What evidence supports the idea that the climate of an area can change over time?

Back

Fossils, sediment layers, and geological formations provide evidence that climates have changed, as seen in the discovery of tropical plant fossils in now-arid regions.

Front

What is the impact of being far from tectonic plate boundaries?

Back

Areas far from tectonic plate boundaries, like Florida, typically do not experience significant geological activity, such as earthquakes or mountain formation.