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WorksheetsGeologic Time Scale Quiz
Total questions: 13
Worksheet time: 41mins
In what geological era are we currently living?
Precambrian Time
Paleozoic Era
Mesozoic Era
Cenozoic Era
Dinosaurs ruled the Earth in what period?
Precambrian Time
Paleozoic Era
Mesozoic Era
Cenozoic Era
Which of these time periods lasted the longest?
Precambrian Time
Paleozoic Era
Mesozoic Era
Cenozoic Era
Saying you are older than a baby is an example of_______?
Absolute Age
Relative Age
The Law of Superposition
Principle of Original Horizontality
What evidence do scientists use to determine the age of the Earth
Index fossils
Stratigraphy (looking at Earth's layers)
Radioactive dating
All of the above
About how old is the Earth
5 billion years old
4.9 billion years old
4.6 billion years old
4.6 million years old
When an entire species dies all at once it is called extinction
True
False
If the same index fossils are found in different rock strata miles apart, what is probably true about the rock layers?
The strata occurred at different periods
they are not both index fossils
the fossils are from different creatures
the strata are from the same relative time period
Which is true about absolute dating?
It uses the half -life of isotopes to get the exact age of a rock or mineral
The law of Superposition is used to determine the absolute date of rocks
Index fossils are compared to like fossils in other strata to determine absolute age
It uses half life to determine the length of time an organism lived in various time periods
Explanation of why layers of the Earth might be altered include:
Law of Superposition
Law of Gravity and Motion
Principle of Cross Cutting Relationships
Radioactive Isotopes
What characteristics must index fossils have?
Long life span, lead isotopes
10 feet under ground and from plants only
small and round
easily recognized, short life span, found in many places
The study of rock layers that is part of geology is known as__________.
Layerology
Stratigraphy
Sedimentagraphy
Paleontology
Absolute dating is also known as ___________.
Radiometric and Radioactive Dating
Relative Dating
Precise Dating
Rock Layer Exact Dating
