
Science DA Review
Flashcard
•
Science
•
3rd Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a valley?
Back
A valley is a low area of land between hills or mountains, often formed by the action of glaciers.
2.
FLASHCARD QUESTION
Front
What is a paleontologist?
Back
A paleontologist is a scientist who studies fossils to understand past life on Earth.
3.
FLASHCARD QUESTION
Front
Where are most fossils formed?
Back
Most fossils are formed in sedimentary rock, where organisms are buried in sediment.
4.
FLASHCARD QUESTION
Front
How does freezing water affect rocks?
Back
Freezing water expands cracks in rocks, which can break them apart.
5.
FLASHCARD QUESTION
Front
How does wind cause weathering?
Back
Wind causes weathering by blowing sand against rocks, wearing them down over time.
6.
FLASHCARD QUESTION
Front
What is weathering?
Back
Weathering is the process of breaking down rocks into smaller pieces by natural forces.
7.
FLASHCARD QUESTION
Front
What is erosion?
Back
Erosion is the movement of weathered rock and soil from one place to another, often by water, wind, or ice.
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