Fast & Slow Changes
What is a large sheet of ice that changes land SLOWLY
Glaciers
Erosion is powerful enough to reshape land, but it usually requires this important thing.
TIME
This structure protects beaches from waves.
SeaWall
Too much rain often causes this natural event.
This fast change happens when energy inside Earth suddenly shakes the ground.
Earthquake
This slow change moves rock and soil to new places using wind, water, or ice.
Erosion
Farmers plant rows of trees to protect their crops
Windbreak
Underwater volcanoes can eventually form these.
Islands
How can wind and water change rocks over a long period of time?
Makes them smooth
This slow change breaks rocks into smaller pieces without moving them away.
Weathering
This is the main thing that helps plants stop erosion.
Their ROOTS
Fast-moving water causes more erosion because it has more
ENERGY OR FORCE
This fast change can create new land when melted rock reaches the surface.
Volcanoes/Erruptions
During heavy rain, erosion increases mainly because water moves
FASTER
Wind erosion happens faster where there are very few ______.
Plants and Trees
WILDFIRE
Stronger winds increase erosion by moving more
Sand or Dirt
Even though erosion is slow, it can create very large landforms like this over time.
Valleys and Canyons
What can protect a coast?
Beach Grass
This disaster involves rock and soil quickly moving down a slope.
Landslide