Hills Texas Hill Country Hills Hills of Tennessee

Hills

Texas Hill Country

Hills

Hills of Tennessee

Mountains

Rocky Mountain National Park in Colorado

Bald Mountain in the Uinta Mountain Range in Utah

Rivers

The Colorado River in the Grand Canyon

Rivers

The Mississippi River in the Great Plains Area of Missouri

Oceans

The Coastal Plains of New Jersey - Atlantic Ocean

Oceans

The Gulf of Mexico in Florida

Deltas

• Deltas are formed by the sediment in a river

• The sediment settles at the mouth of the riverin a triangular shape

• Deltas are found where a river meets a larger body of water

Deltas

This is the Mississippi Delta at the mouth of the Mississippi River in the Gulf of Mexico. It has eroded over time.

January 1973 March 1989 January 2003

Canyons

• Canyons are formed by layers and layers of rocks and sediment.

• Water, ice and wind move the rocks and sediment.

• Over time, the sediment and rocks settle and create a new layer in a canyon.

Canyons

This is the Grand Canyon in Arizona. It has taken millions of years for ice, wind and water to form the Grand Canyon.

Sand Dunes

• Sand dunes are formed by the wind which carries light grains of sand.

• The wind can cause heavy grains of sand to bounce.

• All the blown sand accumulates and settles into a dune.

Sand Dunes

The Kelso Sand Dunes are found in the Mojave Desert in California.

Frost Wedging

• Frost wedging occurs when water freezes then thaws

• This process causes erosion

• Frost wedging is so strong, it can cause rocks to split

Frost Wedging

Ypsilon Mountain is in the Rocky Mountain National Park in Colorado. The rocks on this mountain were split by frost wedging.