Earth's Structure
Volcanoes
Earthquakes
Day & Night
Earth's Rotation
100
Planet Earth is shaped like a _______.
Sphere
100
What is a volcano?
Is an opening in the earth through which lava erupts
A mountain that opens downward to a pool of molten rock
100
Why does an earthquake occur?
because of the movement of the tectonic plates
100
The earth rises from the ______ and sets in the _______.
east to west
100
The Earth spins or rotates on its _____.
axis
200
Name the orange/red layer
Mantle (upper & lower)
200
What shoots up out of the volcano vent?
dust, ash, steam, gas, rock, and lava flows out
200
When an earthquake occurs in the ocean, it can cause a _________.
Tsunami.
This can make a huge wave.
200
How often does the Earth move around the sun?
Once a year
200
How long does it take for the Earth to complete one rotation?
24 hours (1 day)
300
What is the center of the earth called?
Core (inner & outer)
300
Why does a volcano erupt?
because pressure builds up under the surface of the earth
300
Where do earthquakes occur?
In the ring of fire
300
The earth spins and it moves, in what direction?
In an anti-clockwise direction (west to east).
300
The path the Earth takes around the sun is called
Earth’s _______.
orbit
400
Name the layers of the Earth...in order
Crust, mantle (upper & lower), outer core, and inner core
or vice-versa
Inner core, outter core, mantle, and crust
400
Around how many active volcanoes are there around the earth?
There are more than 1500 active volcanoes
400
What do you do if there is an earthquake?
Stay calm
Drop, cover, and hold
400
When it is daytime where you live, is your part of the Earth facing the sun or facing away from the sun?
Facing the sun.
400
The Earth rotates in two different ways, what are they?
it rotates (spins) and it revolves around the sun
500
What is Earth's surface called? What is it made out of?
It's called the Crust
It's made out of rock (2 different types)
Continental crust (land) & oceanic crust (sea)
500
How are volcanoes formed?
The edges of tectonic plates meet each other and collide and push upwards to create mountains
500
What would you include in your Earthquake Safety Kit?
water, flashlight, canned food, first-aid kit, blanket
500
When one side of the earth is facing the sun, what is happening on the other side?
Nighttime
500
What angle is the Earth tilted at?
23.5 degrees