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Time Scales
Bell Work
Tests
Rocks
Minerals
100
A scale that can correctly correspond with the exact dates.
What is a numeric time scale?
100
The heat and pressure would destroy a fossil.
Why can't metamorphic rocks contain fossils?
100
The remains or traces of an organism preserved on rock.
What is a fossil?
100
igneous, metamorphic, and sedimentary.
What are the three rock types?
100
Forms in nature, is a solid, has a definite chemical makeup, and has a crystal structure.
What is a mineral?
200
4.5 billion years ago this important planet formed.
When was Earth created?
200
All three rock types are different because, they are all made differently.
How are all three rock types different?
200
It will least likely have large crystals because the area where is comes from is too hot.
If a rock forms from lava, what will it least likely have?
200
Inner core, outer core, mantel, and crust.
What are the cross sections of Earth?
200
Silicates make up a large portion of Earths crust.
What makes up 90% of earth's crust?
300
These appeared approximately 200,000 years ago.
When did the first humans life appear on Earth?
300
They are formed by molten rock that has cooled and hardens on earths surface.
How is an igneous rock formed?
300
They can be used to compare the ages of rock layers at different locations.
Why are index fossils more useful to geologists than other fossils?
300
This rock forms when slate, changes due to extreme heat.
What is schist?
300
Cleavage, density, luster, streak, hardness, and fracture.
What helps identify a mineral?
400
A clock could be considered a this time scale
What could be a proportional time scale?
400
This represents ancient seawater.
What does the limewater represent?
400
Weathering can be caused by physical and chemical processes.
What is weathering?
400
A rock that is formed on the inside of Earths crust is called this.
What is an intrusive rock?
400
Another diamond because of the hardness level.
What can scratch a diamond?
500
On a football field, modern days would be at 100 yards (proportional scale).
On a football field, where would modern days be?
500
As sand gets transported, it very slowly gets deposited and will eventually form layers, then they will go through matrix.
How can sand be carried by a river and eventually become sandstone?
500
Marble is metamorphic because, it was limestone but changed because of heat and pressure.
What type of rock is marble?
500
Molten rock, igneous rocks, metamorphic rocks, sediments, sedimentary rocks.
What is the rock cycle?
500
They get separated into groups of their chemical makeup.
How do scientists classify minerals?