Show:
Rocks & Minerals
Erosion
The Moving Crust
Sudden Changes
Mountains & Fossils
100
Quite rare subtances made up on one or more elements.
What is a mineral?
100
The physical disintegration of rocks.
What is mechanical weathering?
100
This layer of the Earth has an average temperature of 5500 degrees Celsius.
What is the outer core?
100
The most destructive type of seismic wave.
What are surface waves?
100
This type of mountain has older rock on top of younger rock.
What is a fault block mountain?
200
This common object has a hardness value similar to that of talc.
What is a soft pencil point?
200
When water continuously freezes & melts, breaking apart rocks.
What is frost wedging?
200
The biological evidence Wegener used to support his Theory of Continental Drift.
What is similar fossils of plants and animals were found on continents that were separated by water?
200
This type of fault occurs where the rock is squeezed or compressed.
What is a reverse fault?
200
The youngest mountain in the world, also the highest.
What is Mount Everest?
300
This property would be especially useful when comparing gold and pyrite.
What is streak?
300
Tree roots breaking through a sidewalk is an example of this.
What is biological weathering?
300
This was the main reason that Wegener's Continental Drift Theory was rejected by the scientific community.
What is the fact that he could not prove WHY the continents separated?
300
The three different forms of volcanoes.
What are cinder cones, stratacones, and composite volcanoes?
300
Residue left behind by an organism that forms a thin outline of the living thing.
What is carbonaceous film?
400
These two processes are responsible for creating sedimentary rock.
What are cementation and compaction?
400
The process in which windblown particles strike rock and wear it down.
What is abrasion?
400
The three ways that the tectonic plates move.
What are converging, diverging, and sliding past each other?
400
Most volcanoes on Earth are not active, and can be describe as...
What is being dormant?
400
Fossils are most likely to be found in this type of rock.
What is sedimentary rock?
500
The change from sedimentary or igneous rock to metamorphic rock is usually due to these factors.
What are extreme heat and pressure?
500
One of the most powerful causes of erosion, which is responsible for cutting deep gorges into the land.
What is water?
500
Subduction zones occur where this happens.
What is where an oceanic plate slides under a continental plate?
500
This type of seismic wave can only travel through solids, not liquids or gases.
What are secondary (s-waves) waves?
500
Footprints are an example of this type of fossil.
What are trace fossils?