A sea trench
A giant conveyor belt
A conveyor belt
An enormous rock
A big mantle
What can the motion of convection be compared to?
Heat
Convection
Sea trench
Deep sea trench
Conveyor belt
What kind of feature occurs where cooled mantle material sinks back down into the mantle?
It stops
They start moving horizontally
They start going down again
It moves toward the surface
It begins to move horizontally
What happens to the cooled mantle material that does not break through the surface?
It stays the same
It heats up
The material in the mantle gets cooler
The material in the mantle stops
It cools
What happens to the heated material in the mantle as it rises toward the surface?
The heat tries to go toward the core
Rise toward the surface
Even deeper
Theheat tries to rise toward the mantle
Sea trench
The heat tries to rise toward the surface
To the mantle
It tries to rise toward the Earth's surface
Surface
Where does the heat deep in the Earth try to go?
Because it has a structure like a conveyor belt
The material sinks back down to the core
Heat supplies the energy for motion
Because the motion between heating and cooling
Due to motion
Because the material moves horizontally
Because the material goes and comes up down in a cycle
Because the mantle goes up and down
Why does the system work as a conveyor belt?
Vertically
Horizontally
It goes down
It moves horizontally
Which direction does the mantle move?
It sinks back down into the mantle
It continues going toward the surface
It starts moving horizontally
It stops
What happens when the mantle material that is near the surface starts to cool?
Convection
On the rocks
Into the mantle
Mantle
Crust
Surface
Where do sea trenches occur?
At the surface because there is more space
At the Surface
At its core because it has more heat
At its core
Does rock move more at the surface of the earth or at its core?
The mantle
The equator
The core
The surface
What is the coolest part of the earth?
The core
The Surface
Themantle
TheEarths core
Mantle
The hottest part of the earth is?
Because it moves away from the ocean ridge crest
Because it cannot break through the surface
It can't break through the surface
Because it is cooler
Because it reaches the core
Why does the material move horizontally?
Heat supplies the energy that causes motion. The deeper you go into toward the Earths core, the hotter it gets. At the core it is really hot. All that heat tries to rise toward the surface. In the Mantle, the rock is partially melted and is able to move. As it is heated, the material in the mantle moves toward the surface. As the mantle material rises, it cools. When it reaches the Earths crust, it is mostly stopped. A little of the material can break through the surface, but not all. Instead, it begins to move horizontally. The mantle material moves horizontally away from a mid-ocean ridge crest. Toward the surface, the mantle material starts to cool. As it cools it sinks back down into the mantle. These areas are where deep sea trench occur. The material sinks back down to the core. The system operates like a giant conveyor belt. The motion due to heating and cooling is called convection. 