1. The Rock Cycle
A rock is a naturally formed solid that is usually made up of one or more types of minerals.
Some rocks
however can contain
no minerals such as
Obsidian and coal.

2. The Rock Cycle Since the earth is a majority of rock
there are many uses
for it such as:
The building of
houses and
skyscrapers

3. The Rock Cycle
The sources of metals such as aluminum, iron, and copper

4. The Rock Cycle
The carving of statues and other works of art

5. The Rock Cycle A base for pavement for roads and highways
There are many famous monuments and structures made from rocks

6. Granite blocks from the Great Wall of China
The Rock Cycle
Granite blocks from the Great Wall of China

7. The Rock Cycle
Limestone blocks make up the great pyramid in Egypt

8. The Rock Cycle
At Mount Rushmore granite was carved for the four U.S. presidents

9. The Rock Cycle
Rocks are always changing, by that change can take thousands to millions of years.
The rock cycle is a set of natural processes that form, change, break down and reform rocks

10. The Rock Cycle The rock cycle never ends it goes on continually
There are three types of rocks
Igneous Rock when molten rock cools and becomes a solid. Igneous rock can form on the surface or at depths of the earth over time.

11. The Rock Cycle

12. The Rock Cycle
Sedimentary rock forms when loose rock and other materials are carried by water and wind and then layered.
Minerals can grow on this rock over time. Sedimentary rock can also form when water evaporates.

13. The Rock Cycle
Metamorphic rock forms when heat and pressure cause older rock to change into new rocks.
The heat and pressure can cause the rock and the minerals to change over time.

14. The Rock Cycle
Most of earth’s crust is made up of igneous and metamorphic rock. 95%
Sedimentary rock that forms in thin layers only make up 5% of the earth’s crust.