2024 Unit 3 Final Assessment

Front

What are Primary Waves (P-Waves)?

Back

Seismic P-Waves are the fastest type of seismic wave and can travel through solids, liquids, and gases. They compress and expand the material they move through.

Front

What is the composition of Earth's INNER Core?

Back

The INNER Core is a hot ball of solid iron and nickel.

Front

What is the process called when smaller particles collect together into larger objects?

Back

Accretion is the process where smaller particles gather to form larger objects.

Front

Which layer of the Earth is confirmed to be liquid by seismic wave data?

Back

The Outer Core is the layer confirmed to be liquid.

Front

What is radioactive decay?

Back

Radioactive decay is the process by which an unstable element, like uranium, transforms into a more stable element, like thorium, releasing energy in the form of heat.

Front

What is the speed of seismic P-Waves?

Back

Seismic P-Wave speed varies depending on the material they travel through, but they are the fastest seismic waves.

Front

What happens to seismic P-Waves when they enter layers of different densities?

Back

Seismic P-Waves bend when they enter layers of different densities.

Front

What is the difference between the INNER Core and the OUTER Core?

Back

The INNER Core is solid, while the OUTER Core is liquid.

Front

What is the main element composition of the Earth's OUTER Core?

Back

The OUTER Core is primarily composed of molten iron and nickel.

Front

What is the significance of seismic waves in understanding Earth's structure?

Back

Seismic waves help scientists determine the composition and state (solid or liquid) of Earth's internal layers.