Landforms
A lower area surrounded by higher land
What is a valley?
An opening on Earth's surface from which lava flows
What is a volcano?
What are three reasons why rock is broken and moved?
What are water, wind, and ice?
What is a landform?
A natural feature on Earth's surface
What is the most important thing that causes erosion?
The most important thing is moving water.
A valley with steep sides
What is a canyon?
A large amount of water that covers normally dry land
What is a flood?
This is why floods happen
What is heavy rainfall or melting snow in the mountains?
How does ice cause weathering?
Water goes into the cracks, freezes, and expands, or gets bigger, which makes a bigger crack.
What causes earthquakes?
Plates moving across each other at fault lines cause earthquakes.
A coastal plain located near the ocean is often called this
What is a beach?
What are three ways to quickly change the land
What are earthquakes, volcanoes, and floods?
How do plant cause weathering?
The roots grow into cracks in the rocks and make them bigger and break the rocks.
What causes land and mudslides?
Landslides happen rocks fall from mountains because of earthquakes, or because ice has caused weathering that breaks the rocks.
A flat area higher than the land around it
What is a plateau?
The movement of weathered rock and soil
What is erosion?
Wind blowing sand in the desert can cause these to form
What are sand dunes?
How can a river change course and move to a new spot?
On one side of the river, the water is moving faster and picking up soil and causing erosion. On the other side, the water is slower and the soil falls to the bottom and makes new land.
Why might a beach get smaller?
Usually erosion from the ocean carries away sand, or wind erosion carries the sand away.
A very small flat area higher than the land around it caused by weathering and erosion
What is a butte?
A huge block of moving ice
What is a glacier?
This is a very slow kind of moving soil
What is creep?
How is a plateau like a table?
It is taller than the ground around it, and it is flat on top.