What Happened to This Car?

The video explains the phenomenon of liquefaction, which caused the sinking of Port Royal after an earthquake. Liquefaction occurs when waterlogged sandy soil loses its stability during seismic activity, turning into a quicksand-like state. This process can lead to the sinking of structures and vehicles. The video also demonstrates how liquefaction can be experienced at a beach and discusses its implications during earthquakes.

What natural event led to the sinking of Port Royal?

• A volcanic eruption

• A major earthquake

• A hurricane

• A tsunami

What happens to waterlogged loose soil during liquefaction?

• It becomes more solid

• It becomes dry

• It turns into quicksand

• It evaporates

How does saturated sand behave under normal conditions?

• It remains unstable

• It acts like a liquid

• It behaves as a solid

• It compresses easily

What causes the soil to lose its structural integrity during an earthquake?

• The soil becomes colder

• The water in the soil evaporates

• The soil particles jostle and water can't escape

• The soil particles become dry

What happens to objects on liquefied soil once the shaking stops?

• They are pushed upwards

• They float to the surface

• They become stuck as the ground solidifies

• They remain in motion