
The Birth of Earth!
Flashcard
•
Science, Other
•
6th - 8th Grade
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
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15 questions
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1.
FLASHCARD QUESTION
Front
What eon did the Earth and Moon form in?
Back
Hadean
2.
FLASHCARD QUESTION
Front
What elements make up the Earth's core?
Back
Nickel and iron
3.
FLASHCARD QUESTION
Front
What is the process of smaller particles collecting into larger objects called?
Back
Accretion
4.
FLASHCARD QUESTION
Front
Why does the Earth have a magnetic field?
Back
There is movement of iron in the core.
5.
FLASHCARD QUESTION
Front
How old are the oldest known fossils?
Back
3.5 billion years old.
6.
FLASHCARD QUESTION
Front
What is the age of the Earth?
Back
Approximately 4.6 billion years.
7.
FLASHCARD QUESTION
Front
What is the primary component of the Earth's crust?
Back
Silicate rocks.
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