surface

"An historical survey about asteroid hits sustained by Earth and the defenses being prepared against future asteroid-caused catastrophe"--.

"Explains how the shape of Earth is changed by weathering and erosion from water, ice, wind, and gravity. It is this wearing away that carves out valleys, causes trees to topple over, and creates or destroys good farmland. Examples of changes to landforms help show young readers the effects of weathering and erosion."--From the publisher.

"Explains how the shape of Earth can change with the sudden movement of Earth's crust or when molten rock explodes out of an opening in Earth's surface. Young readers will be fascinated to discover how volcanoes form, and about tectonic plates and fault lines, the damage earthquakes can cause, and how to stay safe when an earthquake happens."--From the publisher.

Easy-to-follow text describes the characteristics of the earth's surface and the many ways it is constantly changing.

Easy-to-follow text describes the characteristics of the earth's surface and the many ways it is constantly changing.

Explores the changes that are happening to Earth, including quick changes such as volcanoes or earthquakes, slow changes such as wind erosion, pollution and more.

Introduces landforms and bodies of water on Earth.

Easy-to-follow text describes the characteristics of the earth's surface and the many ways it is constantly changing.

Explains how the shape of Earth is changed by weathering and erosion, the breaking down of rocks and minerals which are then carried from one place to another by water, ice, wind, and gravity.

Explores the ways that wind and water cause erosion on Earth and change the landscape over time.