Complete Solution (100% Genuine)
What is science? - CORRECT ANSWER-One way of viewing the world around us ex.(historical, religious,
philosophical)
What does science rely on? - CORRECT ANSWER-Facts
What is a principle? - CORRECT ANSWER-A fact that was a revelation in the field.
What are the 4 steps of the scientific method? - CORRECT ANSWER-Observation (Step 0), Question,
Hypothesis, Collect Data, Evaluate
What is a Theory? - CORRECT ANSWER-A hypothesis that has been tested with a significant amount of
data.
What is a law? - CORRECT ANSWER-A law is an almost irrefutable hypothesis.
What must you have to challenge scientific ideas? - CORRECT ANSWER-You must have data and you
must use facts.
What is geology? - CORRECT ANSWER-Study of the earth
How old is Geology? - CORRECT ANSWER-Very young, about 200 years old.
What is Catastophism? - CORRECT ANSWER-Everything can be explained by 6 catastrophes that shaped
the Earth.
Who is the grandfather of Geology? - CORRECT ANSWER-James Hutton
,Where is James Hutton from? - CORRECT ANSWER-Scotland
Who wrote "The Theory of Earth" and when was it written? - CORRECT ANSWER-James Hutton wrote
The Theory of Earth in 1795.
What principle did James Hutton write about in his book? - CORRECT ANSWER-Principle of
Uniformitarianism
What is the Principle of Uniformitarianism? - CORRECT ANSWER-The processes that are going on on
Earth today have been going on since the beginning of Earth. "Present is the key to the past"
What is actualism? - CORRECT ANSWER-Principle of Uniformitarianism but the processes don't have to
happen at the same rate.
What did the solar system look like > 6 bya? - CORRECT ANSWER-No solar system, just a nebula of H
atoms.
How fast do meteorites come into our atmosphere? - CORRECT ANSWER-40km/s or 90,000 mph
What is a nebula? - CORRECT ANSWER-A cloud of gas and dust in outer space
What are the steps of the Nebular Hypothesis? - CORRECT ANSWER-Step A: Gravity
Step B: Solar Disk Model
Step C: Protostar
Step D: Fusion
What is Step A of The Nebular Hypothesis? - CORRECT ANSWER-Gravity pulled the H atoms together.
What is Step B of the Nebular Hypothesis? - CORRECT ANSWER-Solar Disk Model: flattens to a disk, gas
rotates.
, What is Step C of the Nebular Hypothesis? - CORRECT ANSWER-Protostar: Early formations of a star.
What is Step D of the Nebular Hypothesis? - CORRECT ANSWER-High temps create Fusion: Atoms
combine by fusion
What happens to a Protostar once fusion stars happening? - CORRECT ANSWER-A Protostar becomes a
Star
What does Ga mean? - CORRECT ANSWER-Billion years ago
What is planetary accretion? - CORRECT ANSWER-Dust and ice begin to collide, building bigger and
bigger objects. (ex. Meteors striking the Earth)
About how long ago did Earth come together? - CORRECT ANSWER-4.5 Ga
Does planetary accretion still happen? - CORRECT ANSWER-Yes! The rate is just slowed down.
What is the Theia Impact? - CORRECT ANSWER-50 mil yrs into Earth's existence and Earth collides into
another planet the size of Mars called Theia.
What two things happened due to the Theia impact? - CORRECT ANSWER-1. Lunar Formation of Moon
2. Earth became a molten planet
What happened when Earth was a molten planet? - CORRECT ANSWER-Since a lot of the rock was
magma or lava it allowed the Earth to stratify based on density. This is why Earth has different layers.
The layers then re-solidified and this is why they have different densities.
What does Ma stand for? - CORRECT ANSWER-Million years ago