Layers of the Earth
Landforms
Volcanoes
Earthquakes
Erosion and Weathering
100
What is the innermost layer of the earth?
core
100
What is a landform?
the solid features formed on earth's crust
100
What is magma and where does it form?
hot pasty rock that forms in the mantle
100
What is an earthquake?
parts of the Earth's crust change directions (and sometimes bump into each other), causing vibrations across Earth
100
What is weathering?
any action that breaks rocks into smaller pieces
200
What is the middle layer (between the other 2) called?
the mantle
200
What is a hill?
A hill is a high place on Earth's surface, but not as high as a mountain
200
How does magma leave the mantle?
It pushes up through cracks and weak spots in Earth's crust.
200
What causes the damage?
The vibrations travel across Earth and shake everything. This can cause cracks and piles of rubble.
200
How does water break apart a rock?
The water takes up more space in the rock when it freezes and turns into ice.
300
What layer of the earth are landforms on?
the crust
300
What is a landform that is formed when water slows enough to fill an area?
lake
300
What is lava?
hot molten rock on Earth's crust
300
What is a rockslide and how does it happen?
A rockslide is a quick movement of rocks that go down a slope and is caused by gravity.
300
What is the main way that erosion occurs in dry places?
sand particles blow against rocks
400
What layer of the Earth is "toothpaste-y"?
the mantle
400
What landform is a plain that is higher than the land around it?
a plateau
400
What is one very hot force that can rapidly change Earth's landscape?
a volcanic eruption
400
What determines how much damage an earthquake causes?
how close an earthquake is to the surface, how long the crust shakes and how close it is to cities and towns
400
What carries away soil from hilly form fields?
rain
500
Why is the center of the core solid?
The center of the core is packed/smushed together.
500
What landform is made by rivers or glaciers cutting through rock?
valley
500
What does new igneous rock form once it cools?
new crust
500
How can an earthquake change Earth's surface?
As the ground vibrates, the waves can cause cracks and pile of rubble in landforms near the parts of the crust that moved.
500
How do the roots of a tree can cause weathering?
The roots push through soil and nearby rocks. This pressure can help split the rocks into smaller pieces.
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