Rock Around the World

By: Jessica Adams 6th Grade Earth Science

All Periods www.geology.com

www.primap.com

Man Made Rocks vs. Natural Occurring Rock Formation

• The difference between man made and natural occurring rock is that man made is something done by man. We made it the way it seems. Mount Rushmore is man made because it wasn't naturally formed. Naturally occurring happens by flood, weathering ,deposition, and etc. It happens naturally, no one touched it. It is organic being that Earth created the formation itself.

Mount Rushmore (man made rock formation)

• Made to attract tourist to South Dakota.• Man made formations are often made to

demonstrate historical importance (Mt. Rushmore is of previous United States presidents).

http://americanhistory.about.com/od/monuments/a/mount-rushmore.htm

How do natural rocks form?

• Igneous rocks form when magma (molten rock deep within the earth) cools and hardens.

• Sedimentary rocks form when the sediment accumulates in layers and over a long period of time hardens into rock.

• Metamorphic rocks form when under the surface of the earth from the metamorphosis (change) that occurs due to intense heat and pressure (squeezing).

http://www.learner.org/interactives/rockcycle/types.html

Tsingy de Bemaraha(natural rock structure)

• Located close to the western coast of Madagascar • landscape of sharp limestone pinnacles called tsingy: limestone is

sedimentary rock • The spectacular canyon of the Manambolo river and rolling hills cut

through the tsingy creating a diverse landscape• The undisturbed forests, lakes and mangrove swamps of the national park

are the habitat for rare and endangered lemurs and birds.

http://www.touropia.com/natural-rock-formations

Bungle Bungle Range (natural rock structure)

• Located in Australia • The range rises up to 578 meters (1896 feet) above sea level and consists

of distinctive sandstone domes striped with alternating orange and grey bands.

• The banding of the domes are due to differences in clay content and porosity of the sandstone layers

• Sedimentary rock classification

http://www.touropia.com/natural-rock-formations/

Great Sphinx (ancient monument)

• Sedimentary, limestone rock • Man made• Used to represent Egyptian kings • Head of the king and body of a lion

http://www.touregypt.net/featurestories/sphinx1.htm

Stone Mountain (modern monument)

• Stone Mountain, Georgia • Igneous, pluton rock • Used as a Confederate Memorial by man made carvings • Now serves as a park that attracts many tourist

www.stonemountainpark.com

Website References http://americanhistory.about.com/od/monuments/a/mount-rushmore.htm

www.geology.com

http://www.learner.org/interactives/rockcycle/types.html

www.primap.com

http://www.touropia.com/natural-rock-formations