Unit 2 Review
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
+3
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an index fossil?
Back
An index fossil is a fossil that is used to define and identify a particular time period in the geologic time scale. It is typically widespread and existed for a relatively short duration.
Tags
NGSS.MS-ESS1-4
2.
FLASHCARD QUESTION
Front
Why is the ammonite considered a good index fossil?
Back
The ammonite is considered a good index fossil because it is widespread and short-lived, making it useful for dating and correlating the age of rock layers.
Tags
NGSS.MS-ESS1-4
3.
FLASHCARD QUESTION
Front
What does the Fossil Record represent?
Back
The Fossil Record represents a collection of all known fossils and their placement in rock formations, providing evidence of the history of life on Earth.
Tags
NGSS.MS-LS4-1
4.
FLASHCARD QUESTION
Front
What is the significance of the Geologic Time Scale?
Back
The Geologic Time Scale is significant because it provides a chronological framework for understanding the history of Earth, including the timing and relationships of events in Earth's history.
Tags
NGSS.MS-ESS1-4
5.
FLASHCARD QUESTION
Front
What occurs at an ocean-ocean divergent plate boundary?
Back
At an ocean-ocean divergent plate boundary, tectonic plates move apart, leading to the formation of a Mid-Ocean Ridge where new oceanic crust is created.
6.
FLASHCARD QUESTION
Front
What is seafloor spreading?
Back
Seafloor spreading is the process by which new oceanic crust is created at mid-ocean ridges as tectonic plates diverge, causing the ocean floor to expand.
Tags
NGSS.HS-ESS1-5
NGSS.HS-ESS2-1
7.
FLASHCARD QUESTION
Front
How do fossils contribute to our understanding of Earth's history?
Back
Fossils provide evidence of past life forms, their environments, and the changes that have occurred over geological time, helping scientists reconstruct Earth's history.
Tags
NGSS.MS-LS4-1
NGSS.MS-LS4-2
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