THE ROCK CYCLE
Where has everything that Earth is made of come from? …………………………………………………………………….
The Earth has external and internal sources of energy to drive processes going on upon the Earth
(exogenic processes) and within it (endogenic processes).
External source of energy: ……………………………………………….
Internal source of energy: ……………………………………………….
The surface of the Earth is continuously renewed by endogenic and exogenic processes.
Examples of endogenic processes: ……………………………………………………………………………………………………….
Examples of exogenic processes: ………………………………………………………………………………………………………...
New crust is created by: ……………………………………………………………………………………………………………………...
Molten rock beneath the surface is called …………………………………
Molten rock on the surface is called …………………………..
Rocks that have solidified from either of the two above are called ………………………………..
Rocks exposed at the surface of the Earth are broken down by ……………………………….
This general process includes ………………………………… and ………………………………. processes.
Rocks weakened by the above processes can be moved along the surface by: ………………………………
Among the agents performing this function are …………………………, …………………………….., ……………………,
……………………………, and ………………………………
Loose fragments of material are …………………………………. When the energy in the agent removing
them becomes too low to transport them.
These loose fragments are called …………………………………….
These accumulate and are buried under successive layers, and eventually may harden to form
another type of rock ………………………………………..
This type of rock, when exposed at the surface, can in turn be attacked by the processes of:
………………………………….. and ………………………………..
Rocks can be buried to such a great depth that the ……………………………….. and ………………………… alter
them as the minerals change and realign when subjected to higher temperatures and pressures.
Rocks formed in this way are called ……………………………………….
Rocks are raised up by …………………………………. Processes, forming mountain ranges.