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Front

What is the innermost layer of the Earth?

Back

The innermost layer of the Earth is the inner core, which is made up of solid metal.

Front

What is the theory that explains how continents were once part of a single landmass?

Back

The theory is called Continental Drift.

Front

Which type of crust is older, continental or oceanic?

Back

Continental Crust is older than Oceanic Crust.

Front

What type of seismic wave can travel through gases, liquids, and solids?

Back

P-wave can travel through gases, liquids, and solids.

Front

What was the name of the supercontinent that existed millions of years ago?

Back

The supercontinent was called Pangaea.

Front

What are tectonic plates?

Back

Tectonic plates are large sections of the Earth's lithosphere that move and interact with each other.

Front

What is the lithosphere?

Back

The lithosphere is the rigid outer layer of the Earth, consisting of the crust and upper mantle.

Front

What is the asthenosphere?

Back

The asthenosphere is the semi-fluid layer of the mantle beneath the lithosphere that allows tectonic plates to move.

Front

What is subduction?

Back

Subduction is the process where one tectonic plate moves under another and sinks into the mantle.

Front

What are S-waves?

Back

S-waves, or secondary waves, are seismic waves that can only travel through solids.