vocab
Affecting all parts of the world
Global
The removal of soil and rock by wind or water
Erosion
Small pieces of loose rock and other natural materials left behind by weathering
Sediment
Changes by the season are usually
Slow
How does wind weather rock
By causing sand or small rock to beat against the rock and break small bits away
The water that can be seen on the surface of the earth
Surface water
The water within the earth
Ground water
Affecting a small area of the world
Local
______ are natural process that cause slow changes
Rand and wind
Contrast weathering and erosion
Weathering breaks rocks into soil and sediment , erosion carries soil and sediments away.
To move something from one place to another
Transport
An area of land somewhat triangular in shape where a river splits into smaller rivers before it reaches the ocean
Delta
What process turns water vapor back into liquid
Condensation
Scientists monitor the changes in water levels so _______
They can protect water resources
Why would you use plants to prevent erosion?
Plant roots will grow down into the soil and anchor it in place. Keeping wind and water from moving it away.
To change liquids to a gas
Evaporation
The process by which rocks are gradually broken down
Weathering
What is the suns role in the water cycle?
The sun heats liquid water so it evaporates and rises into the atmosphere.
A rocky hill gets _______ when it experiences weathering
Smaller
Examples of surface water?
Puddles, ponds, river, lakes, oceans, glaciers, dead sea
A source of danger caused by nature
Natural hazard
The change of gas into a liquid
Condensation
The water cycle moves water throughout the earth. This process is necessary for life but sometimes it creates natural hazards. How does this happen?
By adding too much precipitation in one place.
Growing plants and freezing water cause physical weathering. Explain how each process weathers rock.
Plants grow and add pressure to rock, causing it to crack. Water freezes and expands in the rock causing it to break.
Examples of fresh water ?
Puddles, ponds, groundwater, rivers, lakes, glaciers