M_Standard 7 Review

Front

What is a geothermal feature?

Back

A geothermal feature is a natural phenomenon that is caused by the heat from the Earth's interior. Examples include geysers, hot springs, and volcanic activity.

Front

What is the oldest rock found near a mid-ocean ridge?

Back

The oldest rock is found farthest from the mid-ocean ridge, as new rock is formed at the ridge and older rock moves away.

Front

What does the Hawaiian island chain illustrate about volcanic islands?

Back

The Hawaiian island chain shows that islands are younger the closer they are to the hotspot, with Hawaii being the youngest island currently active.

Front

What do the colored stripes on the ocean floor represent?

Back

The colored stripes represent the magnetic reversal of the ocean crust, indicating periods of normal and reversed magnetic fields.

Front

What is the theory of Continental Drift?

Back

The theory of Continental Drift states that continents were once part of a supercontinent called Pangaea and have drifted to their current locations over millions of years.

Front

What is a geyser?

Back

A geyser is a type of geothermal feature that periodically erupts hot water and steam into the air.

Front

What is a mid-ocean ridge?

Back

A mid-ocean ridge is an underwater mountain range formed by plate tectonics, where new oceanic crust is created.

Front

What is the significance of the hotspot in relation to volcanic islands?

Back

A hotspot is a location where magma from the mantle reaches the Earth's surface, creating volcanic islands as tectonic plates move over it.

Front

What is the process of sea-floor spreading?

Back

Sea-floor spreading is the process by which new oceanic crust is formed at mid-ocean ridges and older crust moves away from the ridge.

Front

What evidence supports the theory of Continental Drift?

Back

Evidence includes the fit of continental coastlines, fossil distribution across continents, and geological similarities between distant landmasses.