Earth Features and Changes

Front

What are the layers of the Earth?

Back

The Earth has four main layers: the crust (outer layer), the mantle (thick layer beneath the crust), the outer core (liquid layer), and the inner core (solid center).

Front

What is the relationship between Earth's layers?

Back

The hottest layers are closest to the core.

Front

What causes earthquakes?

Back

The most common cause of earthquakes is movements in the Earth's crust.

Front

What natural process creates sand dunes in the desert?

Back

Sand dunes are caused by erosion from wind.

Front

What is sedimentary rock?

Back

Sedimentary rock is formed from layers of sand, mud, or other materials that are cemented together.

Front

What can fossils tell us about the past?

Back

Fossils can indicate the type of environment that existed when the organism was alive, such as whether it lived in water or on land.

Front

What is erosion?

Back

Erosion is the process by which soil and rock are removed from one location and transported to another, often by wind or water.

Front

What is the difference between the crust and the mantle?

Back

The crust is the thin outer layer of the Earth, while the mantle is a thick layer beneath the crust made of semi-solid rock.

Front

What is a tectonic plate?

Back

Tectonic plates are large pieces of the Earth's crust that move and interact with each other, causing earthquakes and volcanic activity.

Front

What is the water cycle?

Back

The water cycle is the continuous movement of water on, above, and below the surface of the Earth, including processes like evaporation, condensation, and precipitation.