Earth Science Exam 1 Study Guide (Complete Guide With Correct Answers)
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Course
Earth Science
Institution
Earth Science
Science - CORRECT ANSWER • The organized, systematic enterprise that gathers knowledge about the world and condenses that knowledge into testable laws and principles.
• Discovering facts about the natural world & the principles that explain those facts
• The diagnostic feature of science th...
Earth Science Exam 1 Study Guide (Complete Guide
With Correct Answers)
Science - CORRECT ANSWER • The organized, systematic enterprise that gathers knowledge about the
world and condenses that knowledge into testable laws and principles.
• Discovering facts about the natural world & the principles that explain those facts
• The diagnostic feature of science that separates it from non-science models is repeatability and
measurement.
1. Observation
2. Hypothesis
3. Test the hypothesis by experimentation.
Theory - CORRECT ANSWER • Has not been falsified
Falsifiability - CORRECT ANSWER • For an hypothesis to be scientifically valid, it has to be scientifically
valid, it has to have the potential to be proven false if it really is.
2. "Cloud" starts to condense due to gravitational attraction between particles.
3. Continued condensation results in rotation
4. Rotation results in flattening.
5. Densities get great enough for nuclear fusion to occur → a star= OUR SUN!
6. Remaining material accumulates in to the planets
7. Planets "sweep out" their orbits
8. 4.2-3.8 by a period of heavy bombardment.
9. The earth's surface cools, solidifies & Earths interior starts to differentiate into different layers based
on density.
, 2 Types of Crust - CORRECT ANSWER • Continental
3.5 ish Billion years old.
25-40 miles thick (for example: Granite)
• Oceanic
5-10 miles Thick (example: Basalt)
Made In Mid-ocean ridges 200 million years old.
Lithosphere - CORRECT ANSWER upper part of upper mantle & crust (rigid)
Aesthenosphere - CORRECT ANSWER Lower part of the upper mantle (pastic)
Core - CORRECT ANSWER > Outer Core:
- liquid metal
-where earth's magnetic field is generated
>Inner Core:
-Solid Metal
Minerals (Characteristics) - CORRECT ANSWER - a naturally occuring
- inorganic
- solid substance
- with a unique chemical composition & internal atomic structure
- made of elements
- 3000 minerals are composed of Oxygen & Silicon (the 2 most abundant elements).
Element - CORRECT ANSWER > a substance that cant be broken down into a simpler substance
>are made of atoms
6 Most Common Elements in the Crust - CORRECT ANSWER > FE (Iron)
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