MOuntains or volcanic
Metals and substances
Minerals
Objects and jewels
Rocks
100
Type of mountain formed when rocks on one side of a fault were forced upward and the rocks on the other side were forced downward
What is fault block
100
Metal more valuable than gold or silver
What is platinum
100
Resistance of a smooth surface of a mineral to being scratched
What is hardness
100
Large almond or tear drop shaped pieces of ejecta formed when lava solidifies
What is volcanic bomb
100
Upper layers of the ground stripped away by surface mining
What is overburden
200
Two rock layers pushed up violently together causing the layers to buckle
What is folded
200
Scale do chemists use to express acidity and basicity of substances
What is pH
200
The largest group of minerals, which compose over 90% of the earth's crust
What is silicates
200
The red variety of corundum
What is ruby
200
Hypothetical time scale supposedly charts both the earths history and the sequence of the rock layers in the earths crust
What is geological column
300
Type of mountain formed when molten rock collects beneath an overlying rock layer forcing the layer upward into a blister like structure.
What is domed
300
Substance that makes up the physical world
What is matter
300
Crystalline substances found naturally in the earth
What is minerals
300
Emerald and aquamarine are two forms of what mineral
What is beryl
300
Theory that states the earths crust and upper mantle consist of huge plates slowly drifting as a result of convection currents in the mantle
What is plate tectonics
400
A volcano consisting primarily of erupted volcanic ash ans rock fragments held loosely together
What is cinder-cone volcano
400
The amount of matter in an object
What is mass
400
Crystals are generally characterized by many flat surfaces
What is faces
400
Regions of the earths surface where limestone is exposed and abundant
What is karst regions
400
Earths surface directly above an earthquakes focus
What is epicenter
500
Alloy of carbon and iron
What is steel
500
A mineral test that leaves a line of powder on a plate
What is streak
500
Lava the hardens into rough jagged rocks with a blocky texture
What is aa lava
500
Sudden appearance of life in the fossil record
What is Cambrian explosion
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