Geologic Time Scale Practice
Flashcard
•
Biology
•
9th - 12th Grade
•
Hard
Tyrel Clove
FREE Resource
Student preview

16 questions
Show all answers
1.
FLASHCARD QUESTION
Front
Which layer is the oldest? Options: 1, 2, 3, 4
Back
4
2.
FLASHCARD QUESTION
Front
How is the geological time scale divided?
Back
Into eras, periods, and epochs based on significant events in Earth's history.
3.
FLASHCARD QUESTION
Front
How does a scientist know that layers Y and M are the same age?
Back
They have the same type of fossil.
4.
FLASHCARD QUESTION
Front
Determining the order of events and the relative age of rocks by examining the position of rocks in a sequence is called ____.
Back
relative dating
5.
FLASHCARD QUESTION
Front
Approximately how old is Earth?
Back
4.6 billion years old
6.
FLASHCARD QUESTION
Front
The break up of this super continent at the end of the mesozoic era, created large amounts of diversity on Earth.
Back
pangea
7.
FLASHCARD QUESTION
Front
What classifies a mass extinction?
Back
Happens in a relatively short period of time and is global
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