How to Describe the rock cycle?

Answer 1

Magma cools and forms igneous rock. Igneous rock can either be put under lots of heat and/or pressure to become metamorphic rock OR be subjected to weathering to become sediment.

Metamorphic rock can either be melted back down into magma or be subjected to weathering to become sediment.

Sediment can be put under pressure to create sedimentary rocks or can be melted down into magma. Sedimentary rocks can be put under lots of heat and/or pressure to form metamorphic rock/ Sedimentary rocks can also be weathered to create sediment to make new sedimentary rocks.

How do the rocks get melted into magma? Normally they have to be pushed along a seductive fault line and returned to the center of the the earth (or close enough to it). Look up "plate tectonics" for the full story about this.

Answer 2

It really doesn't have a beginning or end:it is a cycle. I will start with sedimentary rocks. They are made of silt, mud, and others such as sand that have been compressed by the weight of of the crust above them. They are not too far down in the crust, to go further down in the crust is to find igneous rock beginning in its molten state,. Igneous rock has been heated, melted and reformed by cooling. a good example is lava. When the magma (lava beneath the ground) exits the vent,it becomes lava and begins to cool. The crystals are formed at this time, the slower the cooling, the larger the crystals in most casts. When rock has great pressure and heat applied to it, it becomes metamorphic, or changed. Both igneous and sedimentary rocks can undergo this process. An instance for sedimentary is the transformation of shale to slate. All forms can be weathered. The weathering and eroding by wind or water breaks the rock down to fine particles. These particles are washed into water to lay a bed of silt or mud to be formed eventually into sedimentary rock. Wind blows sand and dust into many shapes and layers. When enough pressure is finally applied atop these layers by other material, you have sandstone, a sedimentary rock. thus the cycle goes on.

Answer 3

Rain → Weathering of phosphates from rocks → Runoff → Sedimentation → Geological uplifting.

And it just recycles in that order.