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Types of Rocks
Minerals
Rock Cycle
Earth's History
Random
100
These are the three types of rocks.
What are sedimentary, igneous, and metamorphic rocks?
100
These are a solid in which the atoms are arranged in an orderly, reapeating 3-D pattern.
What are crystals?
100
The rock cycle is this.
What is a series of processes that cause rocks to change from one type to another?
100
This is the age of Earth.
What is 4.5 billion years?
100
This is the center of the Earth.
What is the inner core?
200
This type of rock forms when molten rock cools and hardens.
What are igneous rocks?
200
This is the tendency to break along flat surfaces.
What is cleavage?
200
This is the number of types of rocks that go through the rock cycle.
What is three?
200
Water brought on Earth by these.
What are meteors?
200
These are the remains or traces of organisms that lived for a short time but in many places around the world.
What are index fossils?
300
This type of rock is most likely to contain fossils.
What are sedimentary rocks?
300
This is the color of the powder that is left behind when a mineral is scraped along a flat surface.
What is a streak?
300
These get compacted and cemented together to form sedimentary rocks.
What are sediments?
300
The continenets used to form this when they were all connected.
What is Pangea?
300
This scientist thought the Earth started in molten rock.
Who is Kelvin?
400
Limestone fizes because it contains this.
What is calcium carbonate?
400
Minerals are placed on the Mohs scale according to this.
What is hardness?
400
This is how long the rock cycle is.
What is forever?
400
Earth was made by this.
What are countless meteors?
400
This formed the Grand Canyon.
What is the Colorado River?
500
These rocks change due to heat and or pressure.
What are sedimentary, igneous, and metamorphic rocks?
500
This is the hardest type of mineral.
What is a diamond?
500
These are the kinds of rocks it forms.
What are sedimentary, igneous, and metamorphic?
500
This is the longest era/period in Earth's history.
What is the Precambrian Era/Period?
500
These were the first creatures that produced oxygen.
What are stromatolites?