Name one way that people can change the earth's surface.
farming
terrace farming
building roads
wind fences
200
What is magma?
hot, melted rock and gases deep inside the Earth
200
How are weathering and erosion related?
Weathering is the breaking apart and changing of rocks- after they are broken down, erosion can occur. Erosion is the carrying away of weathered materials by wind, water, or gravity.
200
What is erosion?
the carrying away of weather rocks or soil by wind, water, and other causes
200
Give an example of weathering.
1. big rocks can break into small rocks
2. water can get into cracks of rock, freeze, and break the rock
3. plant roots can grow into the cracks in rocks and break them apart
300
What is the device used to measure the intensity of an earthquake?
Richter Scale
300
Name and describe a type of landform.
Plain
Plateau
Mountain
300
How does wind effect the earth's surface?
wind can carry away small bits of material like dust or sand; in dry sandy, beach-like areas
300
How do animals and plant change the earth's surface?
Animals- dig small holes and tunnels in the ground, their waste are good nutrients for the soil
Plant- plant roots can grow into the cracks of rocks, plants in the soil help stop erosion, trees can be a shield to the wind
400
True or False: A volcano is a type of mountain.
TRUE
400
How is a plateau like a plain?
the top of a plateau is flat, like a plain
400
How does water effect the earth's surface?
1. water can get into the cracks in rocks, freeze, and break a rock
2. moving water in a river starts to wear away rock and sand in the river
400
How do wind fences help beach erosion from occurring?
Wind fences shield the sand from the wind and keep the sand from being blown away.
500
How does a volcano erupt?
Magma rises from under the ground, it pushes up through the volcano, comes out of the vent and turns to lava
500
Give some examples of landforms.
mountains, hills, rivers, lakes, streams, plains, valleys
500
How can gravity effect the earth's surface?
it can cause erosion by causes rocks and soil to move down the slope of a mountain
500
Describe terrace farming
Terrace farming is farming on mountains. Farmers cut steps into the side of a mountain to farm on it. This helps prevent erosion so the soil will not fall down the slope of the mountain.